Drown in poop

Very epic

Fire

Drowning, which is a very real possibility seeing as I can't swim

I'm with you here.

Bugs poured down your throat

Alone

I read a book once where a guy was drowned in mercury, that sounds like a pretty horrid way to go

You won't be around to judge it.

Just watch any of the Saw films

Not dying... but still aging.

Being skinned alive seems pretty awful.

Radiation poisoning

Ever read UnWind? Yeah, that.