People get really pissed if they don't get their way.
Aguy named Omega_Sensei12 was in my server, and kept spamming, "Why aren't there rockets and grenades I want explosives"
I had explosives before, but I had to remove them because this guy kept teamkilling with them.
I replied, "No, you've had a bad track record with explosives." He continues to gripe about the lack of explosive weaponry, and finally says, "THIS SRVR USED TO BE FUN NOW IT ISN'T ANYMORE"
I banned him for 3 hours, for "General bitching and complaining"