the best anti-theft system

(walking through the parking garage, on the way to lunch)

HW: What the heck! This guy parked so close to my car!
(goes over to see if the car hit his car)
HW: There's barely an inch! What the crap!
BH: Did he hit your car?
HW: I dunno, I can't tell.
(BH walks around to the front)
BH: This guy left his window down! You wanna do something? Oh, but be careful, what if you stick your hand in and a poisonous snake bites you?
(uses his hands to demonstrate how a snake might bite a hand reaching into the car)

(at this point everyone turns and looks at BH)
BH: Dude, that's what I would do as a test. Who in their right mind would leave their window down?
JW: Who in their right mind would keep a poisonous snake in their car?!