Basically there is no gaurentee of a regular income.
If you go into work and there's nothing to do they send you home and you don't get paid!
Some weeks there could be no work, other weeks there could be 60 hours, and there maybe times when there is just a few hours.
This kind of job makes it really hard to budget especially if your not at home with the parents and have bills and rent to pay!
But..... you need money take the job and keep your eyes peeled for something with more secturity