Yeah coz that'd be a great thing to do wouldn't it you dumb f**k, its not the dogs fault the fence is insecure, if my dog had done that and you kicked him i'd beat the living shite out of you.
Knock on the house and tell them whats happened and that your taking the dog to the vets and see if their gonna help with finance. If they get arsey kick the owner in the eye , hope your dogs ok.