Which one? There are a lot of "Rolling Home"s! One club I go to usually finishes with "Rolling Home to Caledonia". Another place, a festival I go to, it's always "Wild Mountain Thyme". Any TMSA (Traditional Music and Song Association of Scotland) events, it will ayeways be "Freedom Come All ye".
Other popular finishers up here are Iain Sinclair's "Tak a dram afore ye go". Davy Steele's "Just One More Chorus", "Kind Friends and Companions" (Sheila Stewart) and Alan Bell's (not Irish, despite a few folk claiming it so!)"When First we met" and of course, the Irish "Parting Glass". And last week, from Sylvia Barnes, "Toddlin' Hame".