Yeah, I gotta say, that hunched-back fur-ruffling pose is the one thing he does I don't care for, but I understand it is a cat thing, so...
When I catch my guy I usually arm-bar him softly to the ground, blow a zirbit on his belly, ruffle his fur and let him up and watch him scoot around the floor so he can show off how cool he is...
He loves that stuff!
His odd water behavior, I dunno what the heck to do with that...he will approach water if in a sink or tub, but running water tends to freak him out. Yet his water bottle dispenser in the basement I swear he paddles out of the bowl like a dog and there are little puddles around the thing. I haven't figured out 100% what his boggle is with water...and so far he hasn't fallen for hopping into the tub when I leave it filled up...I dunno, he's kinda weird...perfect match for me I guess.