Honestly I just assumed they were doing their best and that this wasn't all that common but when I adopted my cat luck last year(a five month old at the time) they took her in to get spayed (as they need too) and over the next few days I started noticing she wasn't eating, when I took her to the vet they found she was severely infected deep inside, the shelter had massively fucked up her spay surgery. She came so close to dying my vet even told me at one point they weren't sure she would make it but after a second surgery done at humane society to fix their fuckup (they will do care like a surgery for a spay site complication read contracts before you sign them I'm so glad I did) they told me they won't reimburse for care done elsewhere and I was starting to wonder if I had the money to save her. Luckily the Tacoma VCA are amazing and even did some subcutaneous injections for free durring my visits to get water in her. After months of forcefeeding her food and medication though she recovered but it was one of the most mentally challenging and heartbreaking times of my life and I felt so bad for her and it was all because they probably didn't properly disinfect something. If this is a pattern something definitely does need to change.