No Scuba Gear
Billy Leblanc is deep-sea diving and is twenty feet below sea level when he sees another guy with no scuba gear.
He goes down another thirty feet, and the guy with no equipment stays with him.
Billy takes out a waterproof chalkboard and writes, “How the hell can you stay down this deep without equipment?”
The guy takes the chalkboard and writes, “You asshole, I’m drowning.”