Work in telecomms.
Ever changing shift patterns. Changing shift times
Different locations each day.
Might not know till the day before
9 hours driving one day then 1 hour the next
No set break times. Work in comms rooms so food water or dust what so ever
On call sometimes
Travel to work via train or/and van
Day shift one day then nights next.
Working away alot around the country
Very phyisical work
So all you 9-5 office workers think your self lucky!