Also never been caught; quite a few close calls but never actually been caught.
I think I was once, years ago had an old satellite system that I purchased for about £15, installed myself, would pick up some foreign channel's, a few nights a week they would put a naughty film on, used to get me hard, earlier that night I had told my mum to come and see my new aquarium I had set up in my bedroom, she said she would look later, forgot all about this when about 2 hours later she decided she wanted to see my aquarium, this was me slightly under the blankets starting to play with my penis to some russian soft porn, as she opened the door I moved so fast to cover myself and switch channels it had to be so obvious. Not a lot was said about my new aquarium she basically pretended to look at it and walk back out realising she had interupted me.