I had one call me a string of nasty four letter words once.
I was very, very briefly in this band with a douchey guitar player who got off on the scent of his own farts. One day, we're humping our gear up a couple flights of stairs, trying to get set up for soundcheck, and when I asked him for a hand he replies "who am I, your roadie?!" I told him to get his gear out of my van, and get it upstairs because I didn't want a parking ticket. He leaves to grab a slice of pizza.
He came back about half an hour later, while the rest of us we're getting ready to soundcheck, he's screaming and cursing my name because I left his brand new Gibson SG, his pedalboard, and his cab sitting on the sidewalk outside the club unattended. He also didn't see how I was "doing him a favour" by propping open the locked door with his Orange.
We didn't get along very well...
Most other guitarists just call me by my name.