"Regular Customers", as they style themselves, frequently confuse the staff who've been there a while.
Sometimes I'm called Frank, after the old Franco who left a year ago. I let it slide, I don't care
And so is G, but he cares, sometimes he's served these people for years "I'm not Frank" he tells them, "I'm G..."
The customers call me over when G is out of earshot "Is Frank upset about something?" they ask.
"You know, Italians....." I explain with a shrug.