J.W.
Why do you keep trying to hold her responsible for something she can't do? Setting kids up for failure is just something I do not understand. She has never remembered to tie the dog up, exactly what makes you think today will be the day?
Sorry but this is all on you. Stop expecting to repeat the same process with a different outcome. Instead, talk to her, figure out what tools she needs to change the process.
Perhaps you don't understand what it is like to grow up with people thinking if they ground you enough, punish you enough you will suddenly be normal. Well I can tell you it makes you angry and it makes you feel like a constant failure.
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Sorry I probably should explain, you are attributing to her the reasons you would forget, that she doesn't care. She does care, I am sure she loves the dog. Problem is at the point when it matters she isn't connecting why it matters. When I speak of tools I mean something that makes that connection every time she lets the dog out. Only she knows that tool and only you can help her figure it out.
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Oh, cute, so for those that show up to dots, she has a 16 year old with Aspergers that forgets to tie up the dog when she lets them out. Apparently she always forgets to tie up the dog when she lets the dog out. They also consider the dog to belong to the child.
So she let the dog out untied yesterday, a few days ago, recently, not sure, and the OP had to miss work looking for the dog. Now she let the dog out again and this time the dog was picked up by the pound so the OP wants to charge her a fine for her missing work and picking up the dog.
I am sure I missed some of the finer points but that was my takeaway.
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My answer was never about beating you up, only defending a child who needs to be defended. Odd really, I make mistakes with my spectrum kid but I have never beat myself up over it, that sounds too much like victim talk, like a plea for pity.