<human>: Give me the gist of the text in a nutshell

This was actually two summers ago, but /u/itzfear brought up this repressed memory. So I had a chill job at a very small Radio Shack back in the day. My manager was 24, chill dude. One day it was particularly slow, even more slow than usual. We had the manager, another employee and me there. I was just sitting around playing my DS, racking up free money, and my boss told me he didn't need me for the rest of the day. 

On the way home I stopped and got some food for everyone. McDonalds, because it's so bad it's good. Got home, went inside and I see my mom's face, beet red, pop up from around the couch. I asked her if she was ok, and she kind've just looked at me in horror. I shrugged it off, and sat down at the kitchen table and started eating. My mom continued to stare at me and said "Kyle why don't you go eat that in your room...?" Now in 18 years my mom has never once let me eat food in my room. Not once. I knew from then something was wrong, so I got up. I started walking towards her, saying that I had brought her and her boyfriend food too, and about 5 feet from the couch she just screamed, "STOP WALKING RIGHT NOW MISTER!" As an 18 year old, I stood there contemplating why I was getting screamed at for offering food and walking and then my mind caught up to what I was seeing. I slowly looked around, saw clothes on the ground, and her boyfriend nowhere in sight. I said "OK I'll just leave this here..." dropped the food on the ground and ran back out the door. Went to my best friend's house and didn't come back for a day or two.
<bot>: I walked in on my mom and her boyfriend, having sex on the family couch, where we all sit,and it took me literally minutes to realize it. Then I dropped food all over the floor and left for a while.