Rotten Shot?

       I was a wee bit encumbered unloading; so I thought I'd just take 2-3 Cans in this trip, the rest later.  As I freed one, its neighbour mad a dash for freedom.
       Unfortunately, there happened to be a solitary wee sharp stone, about the size of a small Broad Bean - BUT - with its only sharp point uppermost in the flight-path.  I managed to drink most of it due to losing fizz more than fluid as it rolled down the Drive.