You could still easily get fired for it, and the dumb shit you do outside of the office to your co-workers will haunt you once you get back to the office. It's not Vegas rules.
Anyway I said "could", not "would". It depends on how coarse you are with it, how dogged you are in doing so despite being told no, how many different people you do it to, and of course if you're reported.
The overall point is, though, that it's not a good idea.