A shillelagh - a traditional Irish stick used as a weapon to settle disagreements in a "gentlemanly manner" - is not permitted as a carry-on item, the US Transportation Security Administration (TSA) has recently confirmed. Security at Boise Airport in Idaho discovered a shillelagh among some carry-on luggage in March. "It may look like a miniature golf club, but it's not," TSA Pacific tweeted with a picture of the carry-on contraband. "It's a shillelagh, a Gaelic club used to 'settle disputes in a gentlemanly manner.

https://www.irishcentral.com/culture/craic/shilleagh-carry-on

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