“Attempted murder. Now honestly what is that? Can you win a Nobel Prize for attempted chemistry?”
It's fundamentally dishonest - and also somewhat delusional - to discount threats even if they didn't come to pass one time. People doubted Trump would try to hold onto office, until he did.
Again, this is less of a concern for him now that he will have sycophants in his orbit now that he's run out of people that will say no to him.
As an aside, I also have doubts that a chimpanzee would be able to successfully disable the safety an AK47. But it would be idiotic to leave that to chance and give one a loaded AK47 anyway.