Looks interesting. I guess fighting with England for so many years turned them a bit aggressive. :)
The highlanders being cold all the time and living in mud huts with grass roofs and nothing but mutton and oatmeal to eat didn't help much, either. But they developed a game of hitting rocks with sticks, and now it's played all over the world for big money (golf).
Look up the Highland Clearances on Wikipedia, when the elites of the educated southern Scots near the border of England burned the highland Scots peasants out of their huts to make them migrate south, live in squalid tenements and work in factories near the ports of Glasgow and Edinburgh to support the Industrial Revolution. It's sort of like our corporations today hiring H1b's or encouraging illegal immigration.