I was a freshman at Penn State and had recently bought my first gay porn (Torso). In it I read about vacum pumping and saw the ads for the pumps. Being a typical guy who wanted a bigger one, but didn't want to buy a pump, I decided that since my penis fit rather snuggly in the opening of a recently finished plastic juice bottle... I'd give that a try as a make-shift "pump." All was going "fine" until I felt something strange, like a "pop," in my penis. Scared to death, my rock-hard erection dropped to super-flacid, super quick.
Thinking I had broken my penis, I did what any frantically scared, very naive, country boy away at a big school for the first time would do... I called 911.
The ambulance arrived and I met them outside of my dorm, still scared that I had ruined my chances for every having sex (yup, I was a virgin). I'm sure that the very HOT EMT guy got a good laugh out of it, but they took me to the ER anyway where I had to tell a nurse, a doctor, another doctor, and finally a third doctor who examined my very limp dick, asked if I had ejaculated recently (which was no) and then told me to go home and "finish the job" which should alleviate my fears as he could not find anything wrong with my penis.
Being a freshman at Penn State, I didn't have a car, and I had never been in a taxi, so I had to call someone to get me from the hospital... And the only person who was available was my pastor. Who I told what had happened.
The kicker came when I realized that I had used my parent's insurance card and had to explain to my mother why I took an Ambulance to the ER at Midnight on a Tuesday.
Everything works fine now... I'm still leary of the pumping business... and I've come to appreciate the equipment I have. :-)