Know a guy that drove a bull hauler with a train horn on it. Said he was sitting at a light and a couple of kids were giving him the arm pump so he gave them what they wanted. Said he never gave a thought to where he was sitting until several cars blew through the light. Was sitting at a RR crossing
Said he considered where he was before he blew that horn the next time.
When we were kids we arm pumped every big truck we could, never gave a thought that the drivers enjoyed it just as much as we did