The wedding date was set and the groom's three pals, a carpenter, an electrician, and a dentist, were deciding what pranks to play on the couple on their wedding night.
The carpenter decided that he would saw the slats off their bed. The electrician figured that wiring the bed with alternating current would give them a few chuckles.
The dentist would not tell the others what he had done, and wore a sly grin, simply suggesting that his gag would be a memorable one.
The wedding and reception went as planned. A few days later, each of the groom's three friends received a letter which read as follows.
Dear friends,
We didn't mind the bed slats being sawed. The electric shock was only a minor setback. But, I swear to God Almighty, I'm going to kill the idiot who put Novocain in the K-Y Jelly.