Gosh Im so sorry to hear what your dad did to the dog.Do you have an spca or humane society that perhaps could help your family out with subsidised vet treatment ? I hope that the tail stops bleeding sounds like you're stuck in a very hard place and you obviously care about the dog very much. please stop thinking that it was your fault accidents happen hey it could have easily been say your finger so please don't beat yourself up about the situation big hugs to you and the dog Also even in my neck of the woods taking a trip to the vets is very expensive so you are not alone in thinking or saying that.I've worked out that in the last 3years i have paid enuff money to my vets to send them to South Pacific 4 times over and I am certainly not a wealthy human being. One last thing may be you could pay so much up front and pay the rest of the bill off it's worth a try keep your chin up ok