Is this universal in government jobs?

A fellow walks into the Post Office to apply for a job.

The interviewer asks him 'Are you allergic to anything?'

He says 'Yes, caffeine, I'm allergic to caffeine.'

'Have you ever been in the military?' the interviewer asks.

'Yes,' he says, 'I was in Iraq for two years.'

The interviewer says 'That will give you 5 extra points toward employment here.', and then asked, 'Are you disabled in any way?'

The guy says, 'Yes... an IED exploded near me and blew my testicles clean off.'

The interviewer tells the guy 'O.K. In that case, I can hire you right now. Normal hours are from 8am to 4pm. You can start tomorrow at 10am, and plan on starting at 10am every day. Don't worry, we'll still pay you from 8am.'

The guy is puzzled and says 'If the hours are from 8am to 4pm, why don't you want me to be here before 10am?'

'This is a government job,' the interviewer says. 'For the first two hours we just stand around drinking coffee and scratching our balls. No point in you coming in for that.'