The hand that feeds you

One of the waiters at our hotel has become increasingly friendly. When we sat down for lunch, he asked if HH and IC were brothers. When they said "no," he said, "Oh, I thought you were all brother and sister." He looked a little startled to learn that HH and I are married.

While waiting for IC to sign the bill for our lunch, the waiter did a double-take and then said:

"You are writing with your left hand."

"yes."

"UNBELEEEVABLE!"