Hey mickey D's isn't so bad...lol I used to be a former crew member and hated cleaning the shake machine.

It can take between 30-60 days to be out your system fully for a Urine test. Hair test can go pass 90+ days. This also depends on your weight, exercise regimen, your diet, metabolism, how much you smoke, how potent the trees are you smoked and other things. If you are pretty much in good shape, exercise everyday, take multivitamins and drink your average amounts of water, I believe you should be clean around 30-45 days, if not earlier. You can purchase drug test at local pharmacies (walgreens, rite aid, etc), but it is easier and cheaper to purchase online. THC is fat soluable, so you need to burn fat and obtain a high metabolism.

Good luck.