Uck,
I am so sorry that you had such a horrible experience.
I used to pet sit regularly when I lived in NY and also for family. My boss would have me house sit for a week or so and I can't imagine pulling any of that stuff? She actually offered for me to stay in her room, but I felt too uncomfortable and would usually sleep on the couch. I always kept the house in great condition, scooped the litter boxes and kept the plants watered. The best part was that she loved my dogs and kids and let them come with me to stay if I needed, since I was sleeping there for so long.
Another couple I petsat for frequently had 2 saints and I went there to walk and feed them several times a day. The female had some kind of pancreatic enzyme problem and needed special food preparing and also needed it on time. I figured, I'd want someone treating my animals and my property with respect and care, so why not do it any other way?
Its sad that people can be so inconsiderate and care more about the money then anything else.
On another note, I'm glad to hear that Cowboy and Tucker have not been visited by the Monster in a while.
Tenchi hasn't had any since then either, but I'm starting to get nervous because his are usually about 6 months apart, so we'll see. Maybe we'll get lucky and he just won't have any more.
*here's to wishful thinking!*