I get drunk and cry about when I took my puppy (she was 11, but she was still my puppy) to the vets and she died there overnight. I sat there petting her and comforting her when they took her blood and put her in her cage. She tried to get up and follow me when I walked away, and I had to force her to stay in her cage. Then she died overnight. She was probably so confused when I left her there. I should have just kept her at home and petted her and been there with her at the end.