It was just Vicky (from what I have read) that was claiming that cutting an animals throat
is completely painless though. Which was what i thought the argument was about and why I quickly said that yes, I did say that.
My main reasons for such statements were anecdotal of course. The worse the sudden injury is, the less it hurts (cuts and such, breaks are an entirely different ballgame) as a rule, going on what others say regularly about such injuries, and personal experience. I
purposely cut my own hand with a piece of glass when I was a teen (I can show you the scar if you like, so you know I am not making this up for the sake of argument

) to stupidly try and prove that this glass was not sharp (spoiler...it ****ing was, clearly)
I swear to god, I felt no pain and even said 'hah, see I was right' before watching the blood drain from my friends faces as they saw all of the blood. And even after seeing the blood I felt nothing. To the point where I (as a morbid person in general) was finding it quite funny to chase my best mate about showing him the tendons, which were clearly visible from the depth of the cut, inside my hand. I felt no pain at all until a good 20 minutes after doing it. And even the pain that came then was not pain as such, it was more...stinging...I assume the start of my body trying to heal itself. The 'real pain' did not actually hit until a few hours afterwards.
Going off my own experience in this instance (and another..which doesn't make quite as gruesome a story so I won't bore you with that one, another deep serious cut, anyway), I would say that having a clean cut to the throat would be painless. As you would be dead (assuming the arteries were cut) before it even started stinging.
My dad very nearly killed himself by not even realising he had cut his inside leg very deeply with a stanley blade after stupidly cutting towards himself instead of away from. My father in law has pretty recently cut himself on his arm (luckily outside arm rather than inner, which could have been deadly) and did not notice this until he felt blood drip onto his trousers, some 10 minutes after the injury. Such accounts are not rare at all.
Anecdotal data means nothing in the grand scheme of things. Just trying to explain a bit why I hold the views I do tbh...and why I have been the way I have been on this thread...
I may have behaved problematically and I do apologize. Its not often I get so invested in threads.