Siege

Kenshin - but only when he was back killing people. He became a wuss when he decided not to kill anymore people.

Vash - again, only when he's in pissed off mode.

And yeah, DORAEMON!

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"Your name's Geek? Do you know the origin of the term? A geek is someone who bites the heads off chickens at a circus. I would never let you suck my dick with a name like Geek"

--Kevin Smith

This part just makes my posts easier to find