When money is tight the "Value" or "Dollar" menu at most major fast-food restaurants is just the ticket for high-calorie food without breaking the bank.
The sedentary nature of bookkeeping or office work in general, combined with copious consumption of fatty, convenient fast-food is likely to cause weight gain quite rapidly.
12 years
Back in the 90s you could BS your way in, work your ass off, and never go without a paycheck.