i did when i was 16 and it was actually really clean restaurant that i worked at. all the salad was only out for 30 mins and binnes if not used - same for meat. grill had to be total clean before each burger cooked but i bet the ingrediants were deadly then.
i only know because of the mcdonalds documentary last year and then i had a mcdonalds last october - (never eat it normally) too worried about whats in it plus never fills me. i had bad morning sickness and craved junk. anyway when i went in they had all these leaflets everywhere advertising how they have changed their ways blah blah... and i have to say (like i did earlier) you could actually see the nuggets are chicken breast. probably made with the cheapest chicken ever but at least they have moved on from processed chicken.
but i will say i have not eaten it since andnow my sickness has gone i can now handle fresh veg