Willy Wonka.

You were on a train trip with your friends and Willy, who you didn't like that much but it didn't matter because you were too excited about the trip, one of your friends asked "You were excited to get on the train, right? " To which you answered yes and suddenly you could hear Willy say "chaca chaca chaca chaca Chu Chu!" Imitating the sound of a train while looking at you...

I looked at him in annoyance having understood what he meant