I'm not afraid to admit it, but I'm scared as hell of getting on a boat unless it's a boat at a Disney park. Even if somebody offered me a free cruise somewhere, I'd say no way!
Big scary spider? Give me a shoe and I will kill it...unless it's a wolf spider (I've caught those in the house and set them free outside...they move fast, but they're cute and eat lots of bugs and aren't scary). Snake in the yard? Give me a shovel and I'll kill that, too (unless it's a rattle snake...then I'd call the fire department). Lizard? If a lizard's in the house, I'd catch him and set him free (lizards are always named Larry, by the way). One time about 10 years ago, I found a poisonous centipede in the house...killed that, too, and tossed it outside.
But a boat? No frickin' way, man. If you invite me to go fishing out on your boat, I'll say no thanks.