Their tinyness is misleading: these devices are not harmless at all (especially the pins can be really mean when assembling and disassembling the thing), and they are said to be especially tricky when they turn up in groups (which happened in my case...) and try to communicate with each other. They seem pretty human at that point - shouting over other mote's words, not understanding anymore because there are too many motes speaking at once, not listening, repeating what others said etc... and it's my job to teach them how to communicate in the right way.
