Semi-Weekly

Guy sitting in a bar looked totally dejected. Naturally, the bartender asked him what was wrong.

"Tonite's my semi-weekly love making session with my wife."

"Well..." replied the barkeep, "that ain't too bad, and it's certainly no cause for such a sad look on your face."

"Yeah... true..." the guy replied, "but see... it's also her nite for her semi-weekly headache."