If they use or used saltpeter it didn't work. Almost every person I knew was as horny as could be (myself included).
I always found that you were best friends with the other guys you worked with. Then, as a secondary layer of friendship came your roommate (if you didn't work together also) and then your tablemates (not the married guys).
It also seemed that if you came to bethel with a group of guys on the same day and went through entrance school and the lectures together you also had a special bond of friendship whether you worked or roomed together. There was something about sitting through that torturous school and lecture series that bonded people.
I remember the constant counsel that sports were not to be taken too seriously. Of course, that is exactly what we did. Which department or group won/lost a sports game was a point of major discussion and trash talk.
Some have already mentioned brother Couch and how everytime he opened his mouth it was to talk about hooooommmmooooooooosexuuuuuuals. (long and drawn out - I swear it took him a minute to say the word).
I also remember the counsel, fairly regularly, to keep bethel family matters within bethel. We weren't to talk to our literal families or congregation friends about bethel related stuff. The bethel family was likened to our real family in that some things are just not meant to be discussed with others. I think most of the wrestling in your underwear and brothers found with pornography fit into this category.