The managers are all full-time adults, most are married and have children. The staff is all students with a few temp workers mixed in when needed. This is a very diverse group and it is understandable that some people are going to be liked and some are not. More then once, a manager has an asked a student or another manager to do something that they don't like to do. There are times when people are stressed and do not watch their tone of voice, or value something as so important that when they communicate it to others they inadvertently insult those people by implying they are unaware or simply stupid.
Tempers rise and attitudes develop.
This often leads to slower work results and a shortness of staff in future events. My grandfather told me once, that if I were able to laugh about it and get others to laugh with me, it would all work out. When I see situations like this arising, I try to make harmless jokes about nothing particular, to simply distract people and get them back on track to working. By me doing this, I am not taking sides on personal issues, I am staying friends with everyone, often being a welcome addition to any work force because of my humor and focus on work, I am staying professional. Work is not the place to be having grudge matches or causing trouble.