On a blind date

During an excruciatingly dull evening on a blind date, a man was relieved when his mobile phone finally rang. He'd arranged with a friend to call him so he could have an excuse to leave early if the date was a disaster.
He took the call and when he ended it, he lowered his eyes and with a grim expression announced, "I've had bad news. My grandfather has just died."
"Thank heavens!" his date replied. "If yours hadn't, mine would have had to."

Thanks to MadPriest!