That is terrible what that vet did (or didn't do).......I hope you don't beat your self up on this, you had no reason to believe there was anything was wrong with Muffin,you didn't do anything intentionally, but that vet did....
Thank goodness Muffin will be feeling better soon, thanks to you....
If you want to do any reading on vet. malpractice you can look at this link, sometimes letting a person get away with things like this discourages them doing better in their practice....Good luck and keep us posted on Muffin's surgery...
http://www.animallaw.info/articles/a...practice.htm#I