I got banned from a couple arcades in the 80s at first because I was using British pounds as 10 francs coins.
The coin trick stopped working when they introduced the electronic coin slots. Someone told me to insert a wire plugged to a lighter in the coin box to get free credits, I guess all it did was fry something cause it went with a bang, so did the slap on my cheek (sorry Lloyd, side note I was 10)
More recently I got a life ban from Twitter.