A  married couple was sitting in a fine restaurant.

The husband kept looking over at a nearby table where a lady sat in a drunken stupor.

The wife asks "I notice you've been watching that lady for some time now. Do you know her?"

"Yes" he replies, "she's my ex-wife, and has been drinking like that since I left her seven years ago."

"That's unbelievable" the wife replies, "I wouldn't think anybody could celebrate that long."