I pulled a Trevino one time years ago. I bought a rubber snake that looked very real. We were hitting balls at the range before the round, one of the guys we were playing with had his bag in a cart and he just grabbed a few clubs to take with him to the hitting area. While he was walking away, I draped the rubber snake around the remaining golf clubs near the top of his bag.
We were there for about 45 minutes, and I'd literally forgotten that I had done it, until I hear him screaming and yelling. He's whacking the shit out of this rubber snake with a wedge, and I hear the wedge smacking against the other clubs. I ran over to him and told him it was fake, not wanting him to do anymore damage to his clubs than he already did.
He refused to talk to me for the rest of the round. Can't say that I blame him. Wish I'd had it on video, though. He was apparently deathly afraid of snakes.