Really, you gave me a gold dollar sir?

Tonight I had an older lady give me the stink eye and some grief because, yes, I ran out of dollar bills so gave her a golden dollar. Is she too old to know that the gold dollar is the same value as the dollar bill? Does she know that gold prices are actually really high right now? Does she know she just came to a dollar theater expecting ironed dollar bills for change? I don't think so. She ended up so saying something about it under her breath to another customer stading in line for popcorn, who responded, "I'll take it!", and got himself a nice golden coin, worth one US dollar. If she is giving out all the golden dollars she is given, then we need to start following this lady around. The dollar theater, an unlikely suspect for receiving a dollar coin I guess.