Biggest "what a moron" moment

[RandomGuy96]

It's no secret that DB characters often act like morons for the sake of the plot. But, in your opinion, what is the single dumbest, most facepalm worthy moment?

In my opinion, it's King Cold's attempt to kill Trunks. Him thinking that Trunks is powerless without his sword is already bad enough, since Trunks had already shown himself to have a high enough battle power to dodge Freeza's energy wave, and make Freeza dodge his. But the worst part is that he seriously thinks that Trunks just straight up handed him the source of all of his power just because Cold asked for it. He didn't even ask nicely, and somehow didn't notice that Trunks was clearly smug and sure of himself even without his sword. Yet Cold is completely confident he just defeated Trunks by getting him to voluntarily hand over the sword after one simple command. Apparently, he just thought that there was one guy in the whole universe dumber than him. His death right after was amusing and well deserved.

[InfernalVegito]

Vegeta allowing Cell to become perfect.

[JackyBoi99]

Kuririn running to help tenshinhan even though nappa was right above him.

[penguintruth]

Pilaf releasing Piccolo Daimao, thinking he would help him take over the world. You are made of dumb, Pilaf.

Adjutant Black challenging the kid who just massacred an entire army, including a super powerful assassin. You are made of dumb.

Kuririn smashing the 18 shut off controller because she kissed him on the cheek once in a meaningless gesture.

Dude, you probably could have reactivated her later if you like her so much. Priorities. You are made of horny.

It makes sense that Vegeta would let Cell reach his Perfect Form, because he's crazy and loves a challenge, but Kuririn, FFS, just go to a hooker if you're that hard up.

Goku letting the battle with Majin Vegeta go as long as it did was dumb, too. He could have ended it with SSJ3 and prevented Buu's hatching, saving millions of lives. But, again, crazy.

Most things Gotenks does.

[Fionordequester]

You know, this thread just reminded me of the most amusing memory. I remember I was watching Dragon Ball Z Kai with my Dad, and we had just gotten to the part where Perfect Cell was massacring a whole army while Goku and Gohan could only watch on the Television. I don't know whether it was right before or after Cell grinned and threw a huge blast of energy, but my Dad just let out a statement right in the middle of it...

"Man, Vegeta is an idiot"

[Saiga]

Off the top of my head, I'd have to say Kuririn's with 18 is the biggest. And unlike most dumb moments, I don't even think it's meant to be portrayed as him making a mistake, but instead a legitimate decision from a hard choice.

[superkakarrot2]

As much as I like it, the entire Boo arc is full of these.

[thatdbzguy]

I can't even pick out just one. DBZ relies too much on characters acting stupid just to get the plot going.

[TheGmGoken]

"Hey look Vegeta! People Popcorn" .

[Mystic Buu]

Goku giving Cell a Senzu Bean.

[DBZAOTA482]

-Gohan standing around smirking as Goten and Trunks was fusing even though it's obvious Boo was up to something
-Everyone thinking Gohan is dead even though they wished all the good people back not long prior.
-Just about everything Kaioshin does.
-Every time Piccolo forgets his ability to stretch his limbs.

[Baggie_Saiyan]

Goku stopping Krillin killing Vegeta. Not that I don't love Vegeta but why, Goku? The guy murdered your friends. Well Technically Nappa did but he was working with/for Vegeta.

Goku giving Freeza some power.

Goku giving Cell a senzu bean.

Goku letting Videl get beat up, iirc. (Haven't seen the Buu saga in a few years so memory is a bit hazy but I think Goku stopped Gohan from helping Videl but yeah pretty moronic).

[Polyphase Avatron]

Every time someone just sits there and lets an enemy charge up their attack/gather ki/prepare to fuse, etc. Especially bad is whenever there's a genki dama involved.

I actually cheered when Super Buu interrupted Goten and Trunks' fusion dance.

[B]

If we're talking stupid for stupid's sake, literally everything Vegeta does and says. But that's just who he is. I can't think of a moment where the characters did something so outlandish it was out of character or beyond reason.

[thatdbzguy]

I can't think of a moment where the characters did something so outlandish it was out of character or beyond reason.

Gohan asking Cell to stop fighting was outlandishly out of character and stupid.

[MediaFanGirl93]

- Goku giving Frieza some energy.
- Vegeta allowing Cell to beocome perfect.

[SSJ3_Zack]

-Son Gohan dropping the Potara earring.

- Son Goku letting Freeza blow up planet Namek.

- Gotenks in general.

- Majin Boo not giving Birusu any pudding.

- Goku not going full power against Kid Boo because he wanted Vegeta to have a turn fighting.

[RandomGuy96]

The last one never happened.

[Cetra]

- Vegeta allowing Cell to achieve perfection
- Gohan not killing Cell but his father instead, great job you sadistic maniac
- Piccolo not reading Boo's mind about his absorption plans even though he can
- Goku listening to the Kaioshin about Boo and not going all out in the spaceship even though he could have destroyed them all
- Gohan the expert scientist standing around like a fool and letting Gotenks reunite even though he knows Boo is up to something evil and could easly one-shot him
- no one using the Dragon Balls for immortality at the right time which could have saved a lot of despair

[dbboxkaifan]

Son giving some power to Freeza as if he'd change to a good guy after all that.
Son is sometimes too forgiveable to enemies that want to always kill him.

- no one using the Dragon Balls for immortality at the right time which could have saved a lot of despair

That'd mean they couldn't die and that's a disadvantage, even if immortality existed in real life who'd want it? Probably not a lot if they thought about it realistically.