We had our our cat put down, a pet of 11 years, I got my neighbour to drive me to the vets, as I knew I'd be in no state to drive back, the worst bit was my wife asked me to bring his collar back, [it was a special cat collar], I couldn't bear to see him get the injection & I left the room, returning a few seconds later to get the collar, our beautiful cat was sitting there, the vet quickly hid the hypo behind his back as I took the collar off, & I was driven home in tears, this was over 20 years ago, & I still miss him, the collar with his name disc on is in a small ceramic jar, & I look at from time to time