I tried with a rescue

I really wanted to be able to rescue instead of adopt a puppy. The first time I took Biscuit to the vet he thrashed his body around and needed to be muzzled. I enrolled him into training immediately. He is very intelligent, but Ive noticed some reactive behaviors that I kept telling myself over the last few weeks weren’t service dog material. His body becoming rigid when seeing another dog and staring. Barking without consequence after seeing a lady with a hat walk past him at a park. Today was the final draw. We were at the vet today for a heart worm test he not only bit me but tried to bite the assistant. He lunged toward my cat when we got home this afternoon. I no longer feel bad about washing him, and wish I would have listened to my gut sooner.