Well maybe not as bluntly as that!
A bit of background. Single mum, fallen out with Ex-P (again), DS1 is 11 and DS2 is 7 with ADHD, only just diagnosed because the medication isn't properly balanced as yet.
She uses my 16yo for quite a lot of odd jobs, dog walking, baby sitting, house sitting etc when she is away. The 7yo is hard work.
She went away for 4 nights, about 6 weeks ago and left my 16yo house sitting. With her agreement, he had friends to stay. She was totally agreeable. I didn't know he was having his mates over or I probably wouldnt have allowed him to house sit.
She now had her phone bill in. Largely it was one boy who was up all night xboxing and making phone calls to mates who ran it up. She has asked son to ask mate to pay bill - perfectly acceptable in my eyes - but if he doesn't cough up (which he wont as he's at college, not at work) then she thinks I might like to pay it.
Normally I do take the moral high ground and if it has been my son who ra\n it up I probably might have chipped in to the phone bill. I would point out, at Easter time (my 11yo plays with her 11yo) and the wii remote flew out of his hand through her plasma, which was unrepairable. Because she had no house insurance, I bought her a new telly.
In this instance I am quite within my rights to say "You gave permission for these people to be in your house, you take responsibility for it" aren't I? She just thinks I'm a soft touch doesnt she?