For those of you old enough to have never seriously considered getting your tongue pierced, you may recall the 1992 US presidential elections, principally involving Bill Clinton, George Bush and Ross Perot.
My memory of the specifics is a bit hazy, but one thing about that election has stayed with me. Everywhere you went that year, you’d run into passionate Perot supporters – handing out leaflets, wearing buttons, eager to engage anybody and everybody in a debate on the virtues of their candidate.