I am in a professional role and mentor trainees in the profession. I currently have one mentee and a second one who is paired with her for part of the placement. The second one is only with us for a short time, while the former is there for 12 months.
The environment we work in is stressful and there is a certain amount of gallows humour behind the scenes. One of the challenges trainees face is dealing with this while maintaining their own professionalism. Since this second trainee arrived, I have had a number of complaints from members of staff about his attitude. He is very loud and has offended several people with his humour and frequent comments about his lairy weekends. I had a word with him about this with the first trainee present, as his behaviour seemed to be rubbing off on her, though previously she had fitted in with the team well. I was aware that, from a trainee's perspective it possibly sounds like double-standards, since staff themselves can be loud and use our workroom to vent in. However, part of being a trainee is that you can't act like a permanent member of staff does.
They seemed to take it well and have quietened down considerably since. However, I have noticed that now, whenever something controversial, or something that could be considered black-humour is said, particularly by me, the pair of them are exchanging pointed looks at each other. It may sound silly, but I am now feeling that I have to watch every word I say at work. They have also been very muted in their responses to an appraisal meeting I held with them, to the point, almost, of rudeness.
I don't know how to handle this. I want to raise it, but don't want to escalate things and perhaps spoil further the previously good relationship I had with the original trainee, who will be with us for another 6 months. I don't know if they realise how obvious these looks are, and there are several of them a day - more or less anything I say seems to provoke one. I have mentored for several years, but have never encountered this before, perhaps because there has only ever been one trainee at a time in the past.
Any advice from wise and assertive MNetters would be great.