Never be rude to, or about , your Looker. You can sneak back down in the darkened cabin, creep past the U/C with a finger raised to the lips and approach from behind and tap him on the shoulder giving him the fright of his life... but don't be rude or as Crab says, the pair of rascals down the back have some nasty tricks up their sleeves. Amongst some of life's injustices was the fact that 'they' managed the pee-tube. It is a bit of a sign-of-the-times when you find out that a cab in your Logbook is now a star in a museum.
G.