After 10 years, the wife starts to think their kid looks kind of strange. So she decides to do a DNA test, and she finds out that the kid is actually from completely different parents. Wife: Honey, I have something very serious to tell you. Husband: What’s up? Wife: According to the DNA test results, this is not our kid. Husband: Well you don’t remember, don't you? When we were leaving the hospital, we noticed that our baby had pooped. You said: 'Please go change the baby, I’ll wait for you here.' So I went inside, left the dirty one there and got a clean one. Moral: Never give a man a job that doesn't belong to him.