Where was the most inappropriate place you rubbed one out?
The most inappropriate place I can think of was in the back seat of my grandparents' car one summer while we were heading back to their house after doing grocery shopping. My mom and grandmother were in the front seat and—as far as I could tell—totally oblivious to what I was doing in the back. In the interest of complete disclosure, I seem to remember it involving the infamous nude centerfold of Burt Reynolds, but the date of that publication doesn't coincide with the time frame of our last summer in Massachusetts when I recall this happening. (That was 1968, and that particular issue of Cosmo—which I can't imagine either my grandmother or mother purchasing, BTW—came out in 1972.) So it's either my memory at fault or more broadly another incidence of the infamous Mandela Effect.
I haven't thought of this in decades! LOL Around 1993ish I had started my sound production company, I was doing an early 8am real estate seminar for 300+ employees. So boring, so quiet because the CEO was a raging narcissist who demanded full attention. However, he was one of the swarthiest, sexiest Superman built hunks I'd ever lusted for! My fully skirted 6 foot table was at the very back wall but clearly anyone could see me from every other angle. I started having wild fantasies of the CEO cock whipping me and a raging hardon ensued. I actually took out my engorged dick and jacked off behind the table on my knees in near room silence! I was so scared out of mind to be caught….well you get it. Now…they never hired me again so who knows??? LOL
Freshman year of college I had to leave calculus II and go rub one out in the bathroom, because it was spring semester and the shirtless men playing around on the quad, who were visible from the classroom window, were just too much. Thankfully (and unfortunately) the very old bathrooms had to-the-floor dividers and doors. But my distracted self almost got off in the classroom itself before I got up to leave.