I haven't had a lot of suppositories but there are some that I remember. When I in the hospital for extreme depression and suicidal thoughts when I was fourteen I was given some suppositories. The thing I remember is that the female nurse pushed the suppositories in and took her finger out and the whole thing took a few seconds but there was one male nurse and he would push it in very deep and keep his finger there saying he had to make sure it was staying in. It made me get an erection every time and he said that's normal to happen. I didn't time it with a clock or anything but he would have a finger inside for anywhere between five and fifteen minutes.