Firemedic just tell them they are furry little critters and send them searching in the brush and dewberries. When they don't find none tell them they can try again the next day
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Man they sure seem to like hiding in the dewberries. I don't go in if I see dewberries but sometimes I see them too late. The last time when I realized I was in the dewberries I just started eating them because I reckoned I was already in the chiggers and there were some fat juicy ones. At least I can wear shoes without wanting to throw the shoes.