From most risky to less risky:
8th grade History class, sitting in the first row in front of my teacher.
At the bottom of a public pool (I had some SCUBA type equipment and was cleaning the bottom of the pool). There were several people in and around the pool.
In a student assembly, with about 200 schoolmates and teachers in the room.
At the same pool, using a water jet on the side, while talking to a couple friends (they didn't know).
University Library, with people a few desk / cubes away (done a couple times).
While on a Ferris Wheel at a county fair (I've done this two or three times).
On a chair lift (and gondola) at a ski mountain (I've done this a couple times as well).
While driving a car on the highway, during the day.
While a passenger in a car on city streets, during the day.
Those are the ones that come to mind immediately. I probably have a few others that I will think of.
As you can see I was a bit of a
masturbation fiend.
Sidenote: for those that are concerned with cum in the pool water, the chemicals in the water will kill anything (not that I had/have anything) as well the pool was over a million gallons so the ratio of my few teaspoons to the million gallons of water was inconsequential.
