Your "garage door" is open.

[edible_hat]

This guy was at a party, walking around with his fly open. He didn't notice, but everybody else did. Eventually a nice girl said to him "Excuse me, did you know your garage door is open?"

He said "Hey baby, since you saw my garage door was open, did you notice the great big Cadillac inside?"

her reply: "No, all I saw was a Mini with two flat tires."