Several instances from my younger years (early-1980's) long before the internet when I thought I was strange and the only one with our kink. Early in my career, I needed to go out of town on business for a couple of weeks. It happened that at the same time, a female friend of many years also needed a place to stay until she moved to a new town for a job. I let her stay at my apartment while I was gone. When I returned, I found that, to thank me, she had cleaned the place up - I wasn't the best house-keeper back in those days. My blue pumpkin bag was stored on the top shelf of the closest across from the bathroom. When I looked to see if she had found it, the plastic hook had been replaced with a coat hanger. I assumed that either she had used it and broken the hook or was suggesting the hanger would be better. I never got up the guts to ask her about it and she lived in another city at that point anyway, but I always wondered.
Another time I was talking to a female colleague at work. She had gone to visit another friend who had been in the hospital for some time with a serious illness. When talking about the visit, she related that one of the nurses had washed our friend's hair but she was upset they they didn't have proper shampoo and had used some other soap instead. She couldn't remember what the soap was, but while trying to think of it, she said "Hmmm... it wasn't enema soap..."
Third instance was when I had been dating a woman for some time. She had been acting really cranky and finally admitted it was because she was severely constipated. I offered the usual suggestions of laxative and even a suppository, but she rejected all those options as she had an important meeting in the morning and was worried they wouldn't work fast enough and didn't want to have the run out of the meeting. I finally told her that the only thing I knew that was guaranteed to work and work right away was an enema. She denied knowing about or having received one growing up, but had me describe the whole process, asked what it would feel like, etc. I offered to stop at the drug store and get what was needed. I no longer recall why we didn't follow through, but years later, and after reading about how so many have feigned constipation to get an enema, I've wondered if that's what she was doing and just chickened out at the last minute. She could well have believed she was the only one with the kink too.
Had I had access then to the information we have now, one or more of those could well have ended up very differently.