Laddie of the night
A man who’s out there doing his job while you’re out there doing yours, and neither of you are happy.
'The laddie of the night just told me he got a bad tip and it hurt his feelings.'
'That laddie of the night is always grumpy, but he’s still the best in the business.'
'The laddie of the night just yelled at his customer because he didn’t like the way he looked.'