A few years ago, I loved answering the phone by saying, "Gynecology Hotline, how may I help you?" The benefits of Caller ID were made apparent after one caller turned out to be my grandpa.
What pranks have backfired on you?
That old I'll poke the back of your right shoulder and step over to the left so when you look behind your right one, I won't be there then when you turn back around, you notice me at your left.
It only works half the time 8D