Ooh, I've got a good one! There's a clothing company (as you, Zed, will know!) in Canada called "Roots." In Australia, to root is slang for, ahem, havin' sex (doin' the nasty, makin' the beast with two backs, shaggin', gettin' jiggy with it, etc.).
A friend who went to Australia warned me about this, saying that when she was down under, she wore her Roots sweatshirt quite a bit...until an Australian told her what that word means down there. (I suspect, from a cross-cultural point of view, it doesn't help that Roots clothes often have a beaver on them - the mammular kind, but still....)
I told everyone in the office where I worked at the time, about this; on my last day of work before I left to go to Australia for a year-long working holiday visa, my colleagues gave me....a "Roots Canada" t-shirt. And a handful of novelty condoms, all of which had passed their expiry date. Sighhh....
The t-shirt went missing somewhere along my way round Oz. To this day, I'm not sure if I simply forgot to take it off a clothesline at a hostel somewhere, or if some Aussie nicked it off same as a humorous souvenir....
