You know which is the benefit of humor (beside the fact that makes us laugh)? Well, it keeps us away from being ridiculous. And who knows it better than a good actress? Emma Watson from ‘Harry Potter’, for example, escaped from being ridiculous during an appearance at Tuesday's London ’Harry Potter’ premiere by having a good sense of humor.

Because of the rain, of the wind or even of her outfit, she suffered a wardrobe malfunction. Watson practically showed her underwear while she was adjusting her long Ozzie Clark dress.

Invited on last night's Late Show With David Letterman, the 19 years old actress laughed about that moment."This was a small wardrobe malfunction that happens. I actually don't remember it happening", she said. And then the actress added joking: "At least I'm wearing underwear!"

See, this is what we have been talking about: humor! Any other lady would have been devastated, not to mention embarrassed! (well, a fake embarrassment, that some girls have in order to prove their long gone innocence).

Anyway, Watson, is currently shooting the last book in the Potter series,Deathly Hallows. ’Harry Potter and the Half Blood Prince’ hits theaters July 15.