I can only think of the following situations. For the first time, I had to be in favor of a strict "stocking". Well, she had to. . . she didn't have to, yes. But at the moment I couldn't think of another solution. The two boys kept interrupting the presentation of their classmates. Since they are sophomores, this was their first presentation of a separate project at all.
But at the moment I couldn't think of another solution.