Don’t know if I was ever banned but I was definitely asked to leave a go kart track when I was about 10 or 11. It was a kids track with only a few karts to choose from but they weren’t even as far as performance went. I had picked one that turned out to be slower than one another boy chose, so he kept lapping me as we were driving around. I’ve always been very competitive so I was just getting madder and madder as this smug little shit kept passing me even though I was pedal to the metal, so I made a decision. One lap as he was just about to pass me I wrenched my steering wheel to the side and ran him off the track. I was, of course, spotted by an attendant who stopped me and brought me over to my very embarrassed parents then asked us all to leave. I don’t think the other kid was hurt, but I didn’t care enough at the time to check so he might have been.