I drop my biro (the good birthday present one that has lasted over a year) & - yes - the mechanism has gone. Useless now.

5 minutes later ...

I bite on a cheese sandwich & suddenly my tongue senses something sharp. The side of a back molar has gone.

This just when I'm feeling rather chipper after managing the third early morning pre-work swim & the prospect of the weekend ahead.

Look on the bright side etc..