Natural Reaction

My parents are exceptionally strict and both are always angry about something so their constantly yelling and getting pissed off. Plus their both extremely nosy and don't seem to understand privacy (I'm 16 and can't even take a shit in peace without someone walking in on me) so everytime I'm laying down and relaxing while playing on my phone or nintendo, I will literally hide them as quickly as possible and pretend I was petting my cat or something. I dont know why I do this, I don't care about getting them confiscated since I'm not obsessed with the internet, and I have nothing to hide on them either. But like I said before, my parents are always finding excuses to be angry, so what I have on my phone that I consoder 'perfectly fine' and 'normal' they might think it's something bad or something that I shouldn't have then get me in trouble for it because their overly strict and oppressive as hell.