Well, the short answer is, old enough to know better . But, same as anyone else, my birthday falls on a Friday ever seven years or so. A decent enough present for me would be a chance to even see a Ketron of any sort in this neck of the woods. Still at this time of the year I don't know if they'd work too well out here on the tundra, as I can't see from photographs where the antifreeze would go in . I think this 13th 'fear' thing is universal, not just in the UK or up here in the Great White North. Cheers!