A religous couple would never use the term "have sex", they would always use the code "doing the laundry".
One night the night the husband comes home from work and says "honey can we do the laundry".
She replies "no not tonite , I'm tired".
So the next night he comes home, same thing. "Honey let's do the laundry", to which the wife replies "sorry not tinight, I'm tired".
The next night when she comes home from a neighbours house she says "ok honey, let's do the laundry tonite".
The husband looks at her, shrugs his shoulders, and says "nah that's ok, it was only a small load, I done it by hand"!!!!!!