my appachan had a green box which we called the medicine box. because it had all the medicines for him and amma. for us kids, the thing that we liked the most in it was the thermometer. i always used to measure my temperature in secret with it. one day it fell from my hands and broke. i was amazed to see the mercury in it take the shape of a sphere. i was surprised. i didn't know that that was what would happen. i touched it and it broke off into several smaller spheres. i kept on poking the spheres till there were a lot of them rolling over the floor as if in some mysterious merriment of their own.