Gonna be a weird one. I've tried to open up a Neato Robot Vacuum to fix a small problem and I've found myself in a doozy. Trying to unscrew it, the tip of the screwdriver must have been loose and fell into a screw hole. The problem is that it won't come out now.. I've tried grabbing it with a pair of pliers but it's too much of a tight fit, I've tried shaking the hell out of it and bumping the other side but it seems to be really stuck in there. Any ideas?