The next update will have this:

1. If you get shot by three different hunters in a short term [臭], you will be reset to level 0.
2. If you have less than 250 xp, you will be reset to level 0 if you get shot.
3. If you have more than 250xp, you will lose 250xp every time you get shot.

Right now, 250xp is equivalent to about level 3 for a 警備員.