Sometimes, you don't know what's weird about your family until you find out the hard way.
A recent Reddit thread asked people to name the things that were normal in their family, but considered weird by outsiders. From sleeping at parties to oversharing about parent sex, it's safe to say we've all got a weird family quirk or two.
Smoking indoors. I didn't do it, but my gf at the time had a veritable panic attack when we had my mother over for dinner. It was the first and only time my mother came to visit. - frog_without_a_cause
My mom is a yawn-yeller. When she yawns, you can hear it from anywhere in the house.
One time my sister had a friend over, and we were in the basement. My mom yawned upstairs, and my sister's friend asked "was that a coyote?" - Veritas333