In my early 20s, me and my mate were in the pub and a guy came in and said "pint of mild, please". We laughed our socks off, we had no idea what he was on about. Later on I've come to appreciate what a great drink Mild is, and I'm keen to brew some at some point, but in my 48 years on this planet I can honestly say I've never seen it in any pubs round here (Gloucestershire).