A man is questioned by a security officer at Pearson International Airport as he places his items on a conveyor belt to be scanned.
Security officer: Do you have any liquids, gels, or solids?
Passenger: No. Oh, wait. Solids. I have solids.
(The security officer is taken aback with concern, which after a moment breaks into embarrassed relief.)
Security officer: That’s OK. Solids are OK.