Richard, my late aunt (may she rest in peace), did indeed have lunch at McDonald's in her SF visit, and, yes, she later boasted about it to her friends back in Wisconsin. She was a bit nutty, to put it mildly.

She wanted to have great clam chowder soup in the Wharf, so, being the dutiful nephew, I granted her wish. Of course, that soup is available at dozens of restaurants in the Wharf. The problem, though, is that it was overpriced. I assured her that I could handle the $4 for soup that should be about $2.50. She would have none of that. We walked around for about 45 minutes until she saw a sign: "Clam Chowder Soup -- $1.75".

Yep, we ate at Mickey D's. She loved it, and when her friends back home asked her about her SF vacation, it was the first thing she told them about.