So, I installed Lollipop and ever since then my phone keeps putting itself in silent mode (it literally did it again while typing this message).
I am not physically pushing the volume adjustment. Everything in "Motions and Gestures" is disabled. I have no idea why it's doing this and no idea how to keep it from happeng.
How I am 100% positive it's not me pressing a button is simple. I was at the gym the other day, took my phone off silent (which it put itself in automatically) and placed my phone in my locker in one motion. Took a shower and came back to my locker. The phone was on silent AGAIN!
It did not do this before updating to Lollipop.