I slapped my friends. Jokingly. We laughed about it, others didn't. I was once banned for a day by one of my friends I was joking around with. It was in good fun, others didn't think so.
Regardless of what other people might or might not think, this is abusing your admin powers. Even if done to your friends. Admittedly, most admins do it once or twice before realizing that they should not. It's practically unavoidable, for how clear we make it that such actions are not condoned or accepted.
An admin is not likely to be demoted for jokingly abusing his power once or twice, between friends. He will be called out on it though, and if he persists on said behavior, he won't be allowed to keep admin. Which is what I'm guessing happened to you, ZupZup (correct me I'm wrong, please).
However, I repeat, care-free slapping/slaying or whatnot between friends and admin
is not what we CG expects from its admins.
There's also the matter of this, which you should explain:
http://cloud-2.steampowered.com/ugc/594734863455448560/AF392CCE0A385AD63B4078AFB473AEB90D7E3205/