I’ve removed good primers from a few hundred live rounds. Use a decapping die or the decapping pin with the sizing die. Just be deliberate and gentle doing it. Personally I use a dedicated decapping die in an inexpensive Lee single stage press incase it pops. Don’t want my sizing die and expensive press messed up. I’ve never had an issue but still try to be smart about it. I suggest wearing safety glasses and work/mechanics gloves. Even ear plugs. And don’t stand over the top of it
In some instances I’ve reused the ejected primer. I use a Sharpie to put a dot on them so I know. I typically reload them in less important rounds. They’ve all fired and have performed inline with fresh from the box primers. Have probably shot 30-40 primers this way. I’ve done so many because I’ve inherited some guns and along with them some questionable reloaded ammo. I’ve deconstructed maybe 30-40 of my own rounds also after I’ve decided I didn’t want to test a certain load or to sell the gun they are for. It’s a process and I like to avoid it. But, I don’t like tossing components.
I do agree trying to fire them a second time and rotating rimfire and trying is a good idea. If they don’t fire don’t eject them right away. I did once have a 22 round go off while laying on the bench. Scary as hell and literally felt like I dodged a bullet on that one. Never again.