What were you surprised your student didn't know AFTER getting to college?

My son, a college freshman, called to tell me that there is a reason the Lunt trap in the dryer needs to be cleaned regularly – his dorm dryer caught fire!

Also, he really had no clue how to take care of himself when he had a cold. I guess I always just handed him his OTC meds when he was home. I wasn’t so crazy after all when he realized he had what he needed in his first aid kit I put together.