I'm your 20 year old son and after living out of home for a year I've come back to crash rent free. Even though I'm very skinny - about 70 kilos - I'm lazy, I smoke weed and play video games all day and I eat terrible food. My metabolism is starting to slow down and it I keep up this lifestyle I'm going to become very fat. I might even end up over 250 kilos if I keep living like this. Watch me live in your house and become obese while you pay for it.