i agree with chins.. u already said u dont wanna get a refund or another dog. if ur hoping to put them out of business not gonna happen. what is best is that now from ur experience u educate ppl on how to buy a dog. tell them what they should look for in terms of health, certificates, etc. its a slow process..and some people wont listen to u. but these are the people who will come back again and ask.. how now my dog/cat/bird sick.. what can u say but "i told u so..." on the other hand there are some people who heed such advise and u shld be proud that u helped someone along the way.

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prevent a litter fix your critter
ffss