I stepped onto the deck of Sajik swimming pool and felt a sharp pain in my foot.  It faded quickly and walked, limping a little, to the pool and swam.  I limped back to the changeroom and had a look at my foot but couldn’t see anything.  Later, at work but before classes started and students arrived, I had another look.  I pulled out this little piece of broken glass – the lines on the paper are the standard distance apart for a notebook (click to bigify).

My foot hurt a lot but felt almost normal after I removed the glass. It is a little tender this evening.