So, I just recently moved in to a new apartment and I'm not completely familiar with the layout of the place. It was around 11:30 pm, a few hours ago and I decided to have a smoke and drink a beer on the back porch. Everything was great until I came back inside. Now, I'm a cheap bastard so even if I leave the place for 3 mins, I turn off all the lights including my computer so it's pitch black when I walk in. I use the iPhones screen light to try to find my way to the nearest wall... When I turned the phone it looked like a wall corner for some reason so I jumped back and smashed the back of my head in to the actual corner where two walls meet. To make matters worse once I hit my head I fell, onto a bag of trash that I should have taken out when I went to smoke. Shit stinks..

TL;DR Use a nightlight and take your damned trash out.