Let's see here, the first one I really can't come up with an exact amount as it happened on Grandma's watch and dime

But Raja got into Rat Poision when she as approx. a year old and had to be rushed to the Emergency clinic. I am sure that cost a pretty penny. She did pull through and was fine.
In 1999, our four month old puppy came down with Parvo. He was hospitalized for a week, then we finally had to let him cross the bridge. The total on that was approx. $1,200 for treatment, boarding, and then the final preperations after his death. Luckly, Grandma pulled through again with that bill. Helped us out tremendously.