<human>: Provide a brief overview of the text.

Here's the story:  I am employed at Dunkin' Donuts.  It is a minimum wage job and I am in high school but I'm graduating this year so I wanted to start a second job to help me pay for college this fall.  I casually mention to my boss at Dunkin Donuts that I was going to try to get my job at Taco Bell back and she said "You would have to pick either here or there.  If you worked both I'd have to terminate you because its conflict of interest."  I said okay but got the job anyways.  Is this really considered conflict of interest and can I be fired for working both places or is my boss in the wrong?  If I were to get fired would it be worth suing or no?  Thanks!  And also Taco Bell knows i work at Dunkin and have no problem with it so is it up to the employer to determine this or is it a state/country wide guideline?
<bot>: I work at Dunkin Donuts and Taco Bell.  Can I be fired for this on the grounds of conflict of interest?