I think I've told this tale on here a while back but it was pretty embarrassing for me and moreso my workmate.
I was working on the big telecoms tower overlooking Oban several years ago and turned up to site in my van. My mate phoned to say he was on route but would be an hour or so late due to traffic. I was listening to the radio and reading a newspaper pretty bored and remembered I had some porn DVDs I hadn't yet seen in my clothes bag. (You know the ones you'd buy in the boozer; )
Anyway, I decided to check out the quality and popped one into my laptop and went in the back of my van for a bit of privacy. I soon got aroused as they were pure filth, not the shit ones that show a bit of muff every now n' then.
I'm knocking one out with tissue in hand ready to fill it and all of a sudden, just as I was shooting my load the fuckin' slide door opened. My Scottish mate looked aghast as he saw me spaff my load onto laptop screen. - "what tha fook ya doon?"....
"Erm,,,,,, erm,,, I'm having a wank mate" ..... : /
He slid door shut looking shocked uttering "see you on site".
I felt a right twat but it was nothing he probably hadn't done before, wanking I mean, not being caught out like I was.
10 minutes or so later I gingerly offered him a brew and we both didn't say anything more about it.