When I was in grad school I went to a conference in Pittsburgh with four female grad students. We were all pretty close friends, having spent quite a few happy hours together, so to save money (which, if you've ever been through grad school is always in pathetically short supply) we all shared one room at the hotel with two beds--I voluntered to sleep on the floor. No big deal, right? So on our first night there, after schmoozing around some, we headed back to the room, and we each changed for bed in the john. Everybody was pretty low-key in their attire: I was wearing just a T-shirt and sweatpants. I nodded off pretty quickly with just a sheet covering me. When I woke up the next morning, I was laying on my back with the sheet pushed off to the side. As I was waking up I saw that two of the girls were already awake and staring at me. Then I realized that I was sporting a full 8+" morning hardon which was tenting out my sweatpants quite obscenely. Embarrased, I tried to sit up and cover it as best I could, and appologized to my friends for the unintended display, and one of them, Betsy, replied, "you don't have anything to appologize for." And yes, more than a few lewd inuendos were tossed my way during the rest of the conference.