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..