why didn't he leave?
So creepy dude has been staying in this room/house for ~2 decades??? I've only got a few problems with that.
1. surely he would need to take a sht from time to time when it's inconvenient : IE someones home.
2. eating food would definitely be noticed.
On to the larger issue. This retard is just sitting around in his empty room... la di da, no problems.... all of a sudden, someone rips open the whole wall, exposing his hidden room................ yeah surely they wont be back to find me... WTF.