I am an avid fan of club hopping every now and then; teleporting there, looking at the crowd, listening to the stream and if it's not my cup of coffee I do teleport away quietly.
Most club owners have better to do than to always babysit the teleport messages of their sim, but I've managed by chance to find the one who does not. It's a foggy, also well visited club (traffic >= 20.XXX), so he really must be some type of control freak or so.
Anyway, one evening I got him suddenly in IMs and he wanted to know what I am always doing there and why I never enter the real club area. I decided to deal with it in the easiest way possible: by simple ignoring the question. He grumbled a little bit, and next time I tried to go there a security orb promptly ejected me from the parcel.
Now they've moved already at least two times, but the orb is still there in action. I would not call this club owner my enemy, but how he views me might be different... an annoyance at least.
Fun thing though was that a few weeks later a good friend of mine became a host there; and I was able to go there and dance until one hour later the orb suddenly started running again and ejected me. My friend then three weeks later also left this club in anger due to differences with the host manager, and I've found out that other friends of mine also had bans for very simple reasons. So I am in good company.