I was in a meeting today where we were discussing how we can get more people involved in the postgrad community and make it more inclusive. In general, people were positive about the initiative. However, at one point the discussion turned to teaching undergrads (the other 3 in the meeting had all been teaching assistants but I have not). One of them joked about how he had a reputation for making several students in his classes cry. It is a shame that whilst many people have been taking seriously the efforts of the department to become more inclusive, jokes like these can really undermine this effort.