Challenge Coins

[MacEanruig]

If "some Top Brass of Clan MacLeod of USA" runs into Jock in a pub (for example) and presents his challenge coin, typically by slapping it on the bar/table, and Jock cannot produce his coin then Jock owes the "challenger", and anyone else that produces their coin at the challenge, a round. If Jock can produce his coin then the challenger buys the round.

As aforementioned, here in the US it's typically been a military custom/tradition. Once you have earned the coin you carry it with you always.

To Jock and the Mrs.: Proud you should be. T'is an honor.

As a corollary, if you happen to drop your coin by accident, you also owe the group a wee dram of their choosing. In the military some coins have rank over other (i.e. a general's coin trumps a brigade level and below coin).