While en-route home he asks the cabby if he would be a witness.
The man suspects his wife is having an affair, and he wants to catch her in the act.
For $100, the cab driver agrees.
Quietly arriving home, the husband and the cab driver tip-toe into the bedroom.
The husband switches on the lights, yanks the blanket back, and there is his wife in bed with another man!
The husband puts a gun to the man's head.
The wife shouts, "Don't do it! I lied when I told you I inherited money.
HE paid for the Mecedes I gave you.
HE paid for our new cabin cruiser.
HE paid for your football season tickets.
HE paid for our house on the Costa del Sol
HE paid for our golf club membership, and HE even pays the monthly dues!"
Shaking his head from side-to-side, the husband lowers the gun.
He looks over at the cab driver and says "What would you do?"
The cab driver replies, "I'd cover him with that blanket before he catches cold."