PVP Server rules - Mob camp question

[stealthdsm]

This should be pretty short and sweet.

For example:
Let's say you are camping a mob. I understand that it is competitive for the camp (you can kill each other for it).

But what if a player waits for you to start attacking the mob and then attacks you - which may or may not result in an XP death. Is this allowed?

I feel like the answer "should" be this is not allowed.

Any insight much appreciated.

Thank you!