I have a couple (20-30 yrs old) with a 4-yr-old child that don't work and barely ever sleep. The child appears to be here one day, then the next he is not. The couple spends 12+ hrs banging around, slamming doors and having 9+ hour conversations with another roomate, a 70-yr old schitzophrenic at all hours of the day/ night. Oh, and the couple uses a key to lock their bedroom door everytime they leave it- even when they will be spending several hours "chatting" 10 ft away from said room. They both have pronounced chronic coughs and sniffles as well. I suspect they are smoking/snorting methamphetamine. Do you have a take on this?