Is it normal for narcissistic parents to apologize a lot then do the same thing over again?

I hope this question isn’t ridiculous and wish I could contribute to this community more often since im believing my parents are narcissists.

My father is a good example for this, he is unhappy and overreacts very easily. I recently accidentally dropped a heavy part of my charger on the floor when I was in the same room then he got scared, angry and was cursing so I guess its probably somehow my fault I ruined his day. The next morning he apologizes and said what he did was wrong then does very similar again and again. Is this normal from n parents?