Things that make me smile No.20

Early this morning somebody knocked on my front door to ask me if I had any grit. Why on earth would I have grit? Is there some sort of conspiracy theory going round, accusing individuals of hoarding grit in their homes? And if so, why would I be suspected? My own front path is still thick with snow and ice. Surely if I had grit I would have used it. The sheer stupidity of people never fails to make me laugh.