Thanks Donut! Good info. It is said that you learn something new every day. Well...I'm done with my learning for today. Had no idea!
It's very interesting to me to see how customs vary from country to country. Especially so between GB and the US as we were originally colonized by Brits. For instance, many barber shops in the US have those red/white poles outside of their shops, but I bet you that not many people understand the significance of them.
I think if you called a doctor "Mr." here, he/she would get shitty with you for not calling them "Dr.".
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Now where did I leave that doughnut?!