I agree -- it's usually the folks who lug a duffle, a backpack, two Hefty bags, a feather pillow and a guitar aboard. But they don't know protocol and the gate agents should set them straight. The guy with the oversized luggage that takes up half a bin definitely knows better.

Reminds me of the true story of the gal who went sightseeing in the Everglades, marched past a "Beware of Alligators: No Walking Beyond This Point" sign, and promptly got chomped by an alligator. Recovering in hospital she was visited by authorities who asked if she hadn't seen the sign. "Oh, yes," she said, "but I didn't think that meant me."

Wonder what luggage she carries on.