I often go through the 7 steps of grief whenever anything major stops working on my pins.

Shock & Denial
"Hmm, just noticed that one of my pop bumpers didn't fire. Must not have hit it like I thought I did. I'll just keep playing."

Pain & Guilt
"Crap it really isn't firing. Why did I spend so much money on this thing? Really needed to get the car fixed but instead I bought this machine"

Anger & Bargaining
"This ticks me off. Now this really expensive machine won't be working and not be as fun as it should be. I'll turn the machine off for a few hours. Maybe that will fix it. If not, then I will sacrifice my high score and do a factory reset."

Depression
"I'd invite you guys over to play some pinball but it isn't working now. I know you guys would love it! I feel bad for not letting you play it"

The Upward Turn
"Hmm, I haven't replaced the batteries in a while. I wonder if that might have anything to do with it. I did see a brief operator notification too on boot up. Maybe I can google that or the guys on Pinside would know."

Reconstruction
"Maybe I should check the connections to the pop bumpers. Aha! a loose wire! I am terrible at soldering but I'll give it a try."

Acceptance and Hope
"It's working! That was it! I can't believe it was such a simple fix! Don't know why I was so scared to try soldering to begin with. I can fix ANYTHING!"

Might not go through every stage each time but I have been through a very similar scenario a couple times now.

_{Post edited by Elfman : spelling}