No one told me that when I put in potatoes last year that I'd, without a doubt, be growing potatoes forever. Although, when I stopped digging for a moment and thought about it, this is neither surprising nor a problem - for the very same reason. I mean, why would you want to stop, after all - and then what would be your motive for warning someone?
So I was pleasantly surprised when I returned from three weeks of trail-blazing through someone else's backyard and started to dig over my weed patch - to unexpectedly find two kilos of these babies. Winner.