yes , dhurmus and newlynew they both are right according to law ...but broo once you filled the case ....if any thing went wrong, the one who gonna be in the most trouble is you ..coz you are just a normal person over here and you can be easily deported ( working illegally is the easiest way to deport ) ..store owner they are have everything to settle; money, paper work , lwayer etc.....and once you came in that situation where they found that you were illegally working..no one can help you brother so ..take step at your own risk ....because just a work permit aint gonna help you ...US runs according to law and regulations.