[rsivertsen]

Yeah, that's an old trick actually, and works great! They also respond very well to being fed on a regular basis. The traps snap shut by some shift in their fluids which causes them to reflex like a bimetalic strip used in thermostats, but have to grow to reopen; there is no reverse mechanism to turn back the internal fluid to reset the trap and re-open it again. If the trigger hairs are touched just once, it does give it a signal to start growing open unless usable food is detected inside the trap. Something inert will just cause it to reopen again. If you wait a few minutes, the trigger hair "forgets" that it was stimulated once already and doesn't close, but sends yet another signal to grow open if there isn't a meal inside the trap. - Rich