I push them out with the regular decapping die/pin.
I've never had one in a metalic case go off useing the regular sizing/decaping die.
Just go easy on it so as not to temp fate. They pop right out.

I reuse any that I have to remove and have never had any problems.

The only primer I can ever remember going off while removing it was a shotshell primer.
That I was removing from a case with the impliments of the day,,the Lee HandLoader set complete w/ dad's favorite hammer.
Tapping it back out of the case gently of course(!) as a teenager would do, it fired and sent the decapping rod skyward for a ride.
Lucky for me I wasn't poised over the end of it.

I've decapped plenty of live shotshell primers w/o incident in my different Mec reloaders since that time.

Like everything else involved with reloading,,there's always a chance of something going bang,,so wear safety glasses at all times.
If you don't feel comfortable doing the operation,,then just skip it and dispose of the case after deadening the primer.,or fire it off to get rid of it..