I have been, learned at an early age!! So when people ask these kinds of questions on this board and there are honest people who can tell the history of the answer, it might be best if they didn't ask the question for the answers may not be all sweet & roses!!!

Been following this thread today and all I can say is that veterinary staff may be overwhelmed and scarred over from what we do, but we have patience and empathy during this difficult time for owners and pets. I cannot imagine having to perform euthanasia on a pet in any other way. But I realize that it is a humane option and not everyone has the funds for veterinary euthanasia. Although in my opinion , it is not expensive. (I’ve spent tens of thousands on care for my pets and that’s my choice and have no regrets)
We have a separate quiet suite for this procedure with a couch and a lamp to make everyone more comfortable. Often when owners choose not to be present the staff will remain with the animal and speak softly and give cuddles and special treats. We gave one dog some breadsticks from Olive Garden, she wolfed down three while we were placing the IV and didn’t seem to mind.
The pre med drug is an opiate that takes away pain and makes them calm. I can’t speak for the animals for what they’re thinking and feeling at the time but we do our best with what we know.

Is there a one shot euthanasia injection or is it two to prevent the pain from the second injection?

There is no quicker, more human death than with a bullet. I don't do it because I like doing it. I do it because it's the best thing for the animal and I'm the best one to do it because I won't screw it up, I do it calmly, efficiently and correctly.

I do it because I love the people in my life. I carry the burden of doing the hard things for them.