Sisters best friend used to be a butler at a hotel in Sydney. My favourite story is when she met Jack Black. He got into the room, pointed at the dining table and went "wow that's a big table, I'm gonna have to hire some friends" and then while she was unpacking his clothes she started folding a pair of his jeans and he went "those are my fancy pants" apparently super nice dude, tipped her like $1,000 by slipping it to her in a handshake. She was never allowed to tell anyone about the celebrity guests until they had well and truly left the hotel.