I heard about this a couple of weeks ago but did not post it because it's a little far fetched. I've been told the same story in two Samuel Smith's pub that are 70 miles apart, so maybe there is some truth in it.
Humphrey walked into a pub and while talking to the manager in the bar he turned round and pointed at 3 groups of drinkers telling the manager not to serve them and to ban then from the pub. The manager told Humphrey that the groups where his regulars, it made no difference and the manager had to ban them.
I'll leave it up to you whether too believe it or not.