I just heard this on the news but unfortunately I cannot find a print copy of it.
There was this woman living in Florida. She had called 911 complaining of breathing problems. When fire and paramedics arrived, they found the 600lb woman sitting on the couch. When they tried to lift her, she wouldn't budge. She was actually stuck to the chair! :o That's not the really gross part. Apparently she has been sitting on this couch for 5 years streight and her skin had actually grafted to the fabric. :P They had to surgically remove her from the couch. Unfortunately she died in hospital.
I just find this story absolutely mind boggling. I don't like being stuck around the house for more than a few days let alone five years. The strange things some people do. :-/