Mine was in a high school with the principal, on the stage, on parent teacher night. We were behind the curtain on the stage. And then right when I was about to nut in him the vice principal was giving a tour of the gym to some parents. He couldn't make a sound. Loved it.
Another time in Italy, there was a sales clerk in a clothing store, I asked him how my pants fit, said I needed some help. I already knew he was checking me out. So I said can you tell me if you think it's too tight here...and pointed to my crotch. He said let me see sir...no...it looks perfect...let me fix the inseam...pulls the curtain over his legs so he looks like he is helping with the length of the pants...but he started sucking me. Well that was a very quick encounter on account that he could have been fired, it like a good little slut, he took the load and swallowed it and then even left and got me some kleenex to wipe up with before I left. I bought the pants and snapped a picture of him folding merchandise in the store. He smiled for the camera.