This has happened to me twice in recent months. I'm in the grocery or the hardware store in male mode and while handing me the receipt the checkout person says something like "Thank you Ma'am." I'm positive they're not saying "Man". They immediately feel bad and apologize. I tell them it's totally OK. Their instincts are apparently very keen. It gives me a chuckle. Way better than being "Sir'ed" in female mode!
