I think I got PTSD getting yelled at by the ONT ops agent if we were more that 30 seconds late in our clapped out BE-18. So much so we'd start it up early to warm the old girl up, then shut her down to load. If not at the flight line with engines turning the dutiful grunt with the clipboard & stopwatch would be screaming at us as if we could hear him, then over the freq taxiing out or when we called in the times.
Having said that IMHO, I'd choose purple over brown any day, brown's in the stone age...still better than the US Mail tho.