Can anyone give me some advice please. I had a phone call from a friend of a friend last Tuesday night (I've never met her). She was in Greece on holiday & her dog sitter had become ill, so she asked me if I would walk her 3 Shih Tzus twice a day & feed & medicate them. A friend of mine had given her my number as I love dogs. I've had to drive to her house twice a day to care for the dogs, she's now home asking what she owes me. What do other people pay for this kind of service for 3 dogs? Any advice very welcome please.