
Apparently, he gets this a lot. From the official F.A.Q. on the excellent warwickdavis.com:
What was Val Kilmer like?
During the shooting of ‘Willow’, I found Val to be a very helpful chap. He has a great sense of humor and liked to shock. A good example of this occurred when we were about to fly off to New Zealand. I was seated in First Class, posing while wearing a pair of fake ‘Rayban’ sunglasses, when Val boarded the plane. He snatched the glasses off my face and snapped them in two. “Great”, I thought, “There goes my cool image!”. After gaining much amusement from my shocked reaction, Val produced two pairs of real ‘Raybans’ and gave them to me with the words “These are much cooler!”.

What? Val Kilmer just walks around with two pairs of Ray-Bans on him just in case he spots someone wearing fake Ray-Bans?
I actually met Warwick Davis a few years ago at a Horror Convention (yeah I’m part nerd). It was kind of a puzzling experience. He was a very nice guy; I just think it was the fact that his manager looked like Billy Corgan and he was selling pictures of himself with his two dogs and his dogs are WAY bigger than him.
Lesson learned: Val Kilmer is a dick.
Wait, doesn’t everyone always carry around two pairs of Ray-Ban sunglasses?
That is the funniest story i’ve heard all day.
Val is not aging as gracefully as most of Hollywood. Maybe he’s afraid of knives?
The Doors was his best performance evarrrr, for my money.