When I went zip trekking between two mountains in Canada, the thrill of the zip trek was put into perspective when we were walking back to the minibus and a bear was sat in the path blocking our way...

(Anti climax. He sat and posed whilst we got our cameras out then waddled off into the woods, presumably for a shit. )

We all know what zips are in The Uk. Or at least, we dirty rotten stinking capitalists amongst us do.