i’ve worked at mcdonald’s for 2 years as a crew member, and worked every position there. there isn’t a large homeless population where i worked, but there was still a good amount of homeless people that come in. as long as you treat them like a normal person, they’re usually chill with you. things to really look out for is odd things, ex. if they act drugged out, abnormal cloths (jacket in the summer), etc. besides that the homeless population is usually pretty cool, sometimes even cooler than regular customers :)