I could relate to that... Since the computer is part of the living room and my mom had the tendency of getting things in and out of my brother's room which she converted into a stockroom. Basically, the computer is faced away from the room so whenever she would stroll by, I quickly change windows. Hahaha!
Right now, I'm practically safe since no on touches my laptop where I keep all my smut and smutty works... If my mom found out, she would rant and nag me non-stop...