The day after being re-united with my 50mm f/1.8 prime lens, I managed to break it into two pieces by accidentally smashing it into a wrought iron railing. Because of the Toronto snowfall, I was carrying my camera in ziploc bag. Due to the careless movement of my arm, a lens that I have used for years met what may be an untimely end.
I will investigate whether it is possible to have the two halves re-joined. If not, I will have to consider whether it is more sensible to replace the f/1.8 lens or buy the more expensive but more solidly constructed f/1.4 variant.
[Update: 29 January 2009] The word is back from the camera repair people. They estimate the chances of repairing the lens for less than the cost of a new lens at approximately zero. Also, it would take six to eight weeks. Eventually, I suppose I will buy a new 50mm lens.