Advance reading something, and passed the words "high heid yin". One of my all time favourite Scots expressions, especially when used in the plural, that I still say regularly, including just a week ago when talking to Martin about something in our kitchen. I've also deployed it when asking an audience question 20+ years ago at a history research seminar at Dundee University, though I then felt the need to translate it for the visiting Welsh prof! For non-Scots friends it means someone in authority, a leader.

Checking back here I have mentioned this expression in a friends-locked post before, but it's well worth repeating!