I am mixed race myself being of indian and nepalese descent. Lucky for me I have the ability to isolate specific stereotypical tendencies of one group and let it predominate on days of my choosing.
If you had the ability I had you could be total scottish one day and total irish the other. In effect you could be so pragmatic that you could make the whistle one day and the next day you could be so gifted by Blarney that you could talk yourself into giving the whistle away to yourself.
The stereotype of the mean Scot has always amused me a lot. I really heard it more in my years living in England than I ever have before or since. I got so sick of it there that I took to replying, ‘After the way the English have treated them over the centuries, what would you expect? They’re not mean; they just don’t trust you.’
One advantage the Scots have always held over the English is that they are the only race who have ever received an order for 48 million kilts from a table-sized sentient blancmange from Andromeda.