What drives me nuts is when people walking down the aisle stop and lean up on your chair to watch your screen. I had someone's kid walk up and stand next to my seat to watch, it was cute at first but after 10 times I was about to back hand the little runt.
I've had a movie on where all of a sudden it was full out sex scene just as the flight attendant came by and saw. Then she went to talk to the male flight attendant. he comes back and asks me what I am watching and where I got the videos from. Odd questions. I told him, he then tells me to hold on, comes back with a stack of DVDs, tells me he is in the business of burning DVDs and even prints out labels for the boxes like the real movie and asked me for my opinion and if I think he could get $10 for each one. LOL. Fucking shady skies.