It's half past one and I'm sittin in lab. A couple of men in suits just walked in and asked my tutor where the professor was (kind of silly since it is clearly written on his door, which must be passed to get here). What made the situation funny was that my tutor was currently brushing his teeth combined with the fact that the men in suits seemed to think this was completely natural as he waved them towards the professor's door.
It's nothing really surprising, people brush their teeth in here all the time and just a few minutes ago the assistant professor was shaving. But it still struck me as very funny.