My (strange) Nexus 4 Problem

I've had my Nexus 4 for a little over a month now, and I've noticed something really strange: My phone is slides around too much. My phone has slid off both full binders and a cardboard box propped up by a pencil, which is something that wouldn't make me worry if it wasn't made of fragile glass. Is anyone with a Nexus 4 having their phone slide off nearly flat surfaces? Also, before I get any hate, I do love my phone, and hope that yours gets there soon if you're still waiting.