One thing you learn quickly are there are a LOT of different standards of people's living arrangements.One house I had to work in, I wouldn't even use the loo for a pee, it was so disgusting. I crossed my legs and finished the job quickly.
Another one, single bloke living alone, the house was absolutely disgusting, particularly the kitchen. I later found out he was a nurse. I just prey his personal hygiene when at work is better then when at home and hope he never has to treat me.
And it's amazing how you can go into a home full of rubbish, nasty old worn out furniture, disgusting worn out carpets, faded peeling wallpaper, and a shiny brand new 60" plasma tv sitting on an ancient old tv unit. Some people have some strange priorities.