Just to clarify things, we had some issues with Paul's social behavior (should I say antisocial?): being really awkward with the team and rude to the guests, staring silently, asking inappropriate personal questions, making creepy comments - people were not comfortable around him. I understand people are different and the hostel environment might not suit everyone, but this was definitely a mismatch.
On top of that I had a few complaints about his general attitude: slacking, back talking, feeling entitled when it's pretty clear that we offer work exchange and not just free accommodation and food.
We had a very gentle talk about this with Paul and we had to let him go as a result - that's why he "left" one week before - we could not have him for even a day more, cause it was affecting the whole team in a negative way. By the looks of this review I can tell it was a right decision after all :(