LOL!!
I was mercilless with those people and they couldn't have been happier. They figured that it was good that I treated them like I treat everyone else.
Riding in the back seat of my deaf friends car one night I told my hearing friend to tell "jim" that I just threw up all over the back seat of his car. Jim slams on the brakes and slides to a stop only to turn around and see me laughing.
Another stunt I enjoyed was when I would leave their homes I would get into their cars and tune the radios to polka and crank it full tilt. The next day I would see them driving around just jammin the polka.