(True) Teacher said that thunder was caused by clouds bumping the mountains. Must've been the Invisible Cleveland Mountains.
(True) Saying "Jesus, Mary, Joseph!" got you 300 days off time in Purgatory. Confirmed by notations in my St. Joseph Daily Missal. Cancelled out if said after hammering your finger.
(False) That old people could leave their false teeth on the table so they could eat while sleeping in the living room.