Tinkerbell used to be fine at the vets. She went in for her first ultrasound on her heart (she has a murmur and they were checking to see if it was more) and they were telling me what a sweetheart she was...and I was like, "What?!" She gets angry when you mess with her, I didn't understand it. Then I had to take her back two weeks later for a follow-up and the vet called me and said she now understood why I was so surprised...and asked if she could sedate her to do the ultrasound! Now everytime we go to the vet they're terrified of her, I have no idea what she did to them...lol.