i had a similar experience in the hospital once, they had to give me a bed bath bc i was a fall risk and the nurse was about a 4 at best but i had been in there for 2 days and had not had any for about 4 days and i got more than a half chub, i told my wife who was in the room as it was happening, she asked the nurse if she could give me a handy when she got out. I don’t get embarrassed easily but that one did the trick