Exams?
Never because if I don't know the stuff I don't know it, if I know it then I do. Simple as that. Who cares if I graduate with a 2.3 or a 3.4? Those were my high school and university graduating GPAs and in any job I applied for, I was never really asked except for once, for a government intern job which was set to end anyway after 15 weeks, and the difference would have been maybe $1.50 per hour for three months had I posted a 3.5 university gpa.
Girlfriends?
There was no such thing as "cheating" in the 70s and 80s in pre-AIDS America for many guys from their perspective. Most girls did not go with that theory. We were like characters from that 70s-Show and it was an extension of the free love movement of the 60s and 70s and it has led to a ton of divorces in later decades as boys never grew up into men. People would have relationships in junior high school and high school, and sometimes college, for two weeks, and maybe up to a few months. Monagamy, especially in those earlier decades, was thought to be a relic of the 1950s. This sometimes led to pregnancies by one guy to two girls and this led to a huge mess. We had a separate high school for quite a few girls who got pregnant by their deadbeat teenage boyfriends.
Work?
No. Unless you consider coming in five minutes late every now and then or taking a few extra minutes for lunch cheating. I remember a lady who was so insistent on not cheating at work that if on the day before Thanksgiving or Christmas and the "boss" let us off early with full pay, she would stay behind until closing time, even if it meant she was alone in the building and had to walk to her car in the dark, often requiring at least one security guard to have to stay behind with her. We all thought she was strange, that if the boss sent us home at 4:30 instead of 5:00, we would go home and she would just sit there, with no superiors to hand her work, no calls to answer, but just kind of wait and have 5:00 come around.