Hehe, Squall ATTEMPTING to be humourous and failing miserably makes him even funnier! :D
Another example:
*after the discover that Balamb Garden is mobile, Rinoa asks Squall for a tour of the place, here's if Squall agrees*
Rinoa: "What's this?
Squall: "The cafeteria."
Rinoa: "And that over there?"
Squall: "The parking lot."
Rinoa: "Look Squall, I really appreciate you taking me around and everything, but could you make this fun, like a normal tour?"
Squall thinks: What does she want from me?
:D