Yeah in my area junky old RVs that never move are frequently meth-mobiles. They used to tow them up on streets in our vicinity late at night when nobody would see them, then push them up to the curb in front of single family homes. No license plates, the engine doesn't run anymore, the tires go flat. Really nice neighbors to have permanently parked about 50 feet from your front door, 24/7, observing every move you make as you come and go every day. They get to know your schedule very well. (Guess where they use the bathroom?) Finally enforcement of a city ordnance prohibiting overnight RV parking on residential streets got rid of them.