Val KilmerVal KilmerIt's not everyday you get to pee next to a Hollywood star, and even less often that they'll engage in a bit of filmic banter with you.

So it was a bit of a surprise to hear that Val Kilmer took a break from his personal time in the urinals to exchange Top Gun quotes with a complete stranger.

The actor, who played Iceman opposite Tom Cruise in the hit eighties film, was out enjoying dinner at The Ivy Restaurant in London with Quentin Tarantino and Kevin Spacey, reports the Daily Mirror.

But he proved to be a decent egg when he nipped off to the loo, as a spy told the paper:

"This guy quoted Top Gun and said to him: 'You can be my wing man anytime.'"

"He was expecting Val to get arsey. But Val said: 'No man - you can be mine.'"

But bless Val, his humour hadn't quite reached its fill and he agreed to take part in a prank with his new fan.

"They had a good laugh, and then the guy asked Val if he could greet him at the bar like he's an old friend, to wind his pal up. Val agreed.

"Minutes later, Val came to the bar and said: 'Dave, so good to see you. How you doing?' The guy's pal was stunned."