Drive through funeral parlour? I'd check the other side of the building. If it's a MacDonalds, I'd look for a conveyor belt going from one side to the other. I'd always had my doubts about the quality of a Mac, and a funeral parlour link would be proof consummate.
While back in London, they were fined when two customers found in one burger, an insect, and in another, a piece of cloth. The judged fined them for "selling food unfit for human consumption." A mate I worked with read this aloud, and said they've been doing that for years!