Gastric conundrum

When you're working on the night shift, food is a big problem.
You have two choices usually.
1. Don't eat while working, have breakfast after work. Go home sleep for 4 hours.
Have lunch at lunch-time. Go back to sleep. Get up have dinner.
2. Have 'breakfast' after sleep in the evening. Have 'lunch' during work. Go home
in the morning, have 'dinner'. Sleep uninterrupted.

I've tried both ways. And now, I think I've stumbled on the third way.
Eat when you're hungry, otherwise don't. Works for me.
It just occured to me the call-centre types would have all whittled this little problem
down to a fine art.

(If that sentence doesn't make sense, blame the night-shift)