At 04:18 PM 5/21/98 -0400, Judith Stone wrote: >By the way, Dave and I were bottling our Mother'n Law's Revenge hotsauce >this morning and when he tested it for taste, the hair on his arms stood >straight up! Can any of you "scientists" out there tell us what caused >that reaction. It was quite funny, at the time. >Thanks again, Judith Here's my educated guess: Each hair has a small, smooth muscle, called an "erector pili" attached to the root. It's a vestigial structure in us since we have so little hair left on our bodies. For other mammals, though, they are quite useful in stressful situations -- think of cats, whose hair stands up when they are angry, scared or cold. My guess is that Dave was stressed (in a good sense) by the new batch of hotsauce, got an adrenalin rush, and his hair muscles did the appropriate thing. Whether my answer is correct or not, I certainly think it ought to be! David