He's an equal opportunities offender.

For example: To a driving instructor he met during a stroll in Oban, Scotland:

"How do you keep the natives off the booze long enough to get them past the test?"

That's from a site with a collection of his gaffes. (And other peoples.)

I imagine if he'd been at a theme park where there were Scots dressed like Rob Roy waving claymores about ceremonially, he'd have likely asked them if they still used them on rival clans.