Aw shedmeister! Growster seems to have an uneasy knack of putting people into difficult positions doesn't he. I'm so sorry about your present predicament and hope you managed to get a bit of sleep last night on the old potato sacks in your shed. Anyway, I have some happy news! Whilst I was ensconced in my little laboratory last night, I had a light-bulb moment when Tippex-ing out a slight mathematical error. No - nothing to do with Frankenstein but it may solve the problem of our lurker beans. Using bits of left-over foam insulation, some empty biro cases, rubber sealant, strips of sticky-back plastic and, filled with my secret formula (available in glo-white only) I have created the "Gooser Wonder Pen." As your beans grow and before they even have the chance to think of lurking, you go along the rows and apply it to the bottom of the beans. Later on, all you need to do is look for anything with a white tip and cut it off. It is guaranteed to be rain-proof, harmless to humans and, for those who harvest at night-time, it also glows in the dark. I expect orders to flood in so please reserve yours now!!! The cost? Surely that's immaterial as it will save you from having to endure more colonic irrigations. If you turn your nose up at this (my pen not the colonic bit) then I just have one thing to say. GROW PURPLE BEANS!