I'll start with 3hrs

I was working in Ireland for a while and applied for a Job in Dell Server Support. (that was like 10 years ago mind).
They insisted on an MCSE 2000 which I was one exam short of.
Because they said they wanted me the agency managed to convince them that I can get the remaining exam during my probation.
First day arrives and I start immediately shadowing a guy after a chat with HR.
1. Call
Customer:"Server does bla bla"
Me Thinking:"It's XYZ - 2 seconds, done"
Colleague:"Sorry, I need to ask you a few questions"
Me Thinking:"???"
Anyway .. to make a long story / phone call short. You weren't allowed to "think" or troubleshoot for that matter, but you had to follow a troubleshooting / decision tree.
Only managed one call before lunch and then I asked why you need an MCSE for following some piece of paper and no one knew but knew that this is how you do your job ...
Well, I paid for my lunch and left ... started at 10am, left at 1pm ....