Excel 2003/XP (soon to be Excel 2007/Vista :(

Situation: Have a workbook with lots of shapes on various worksheets
- all of which need to run essentially the same macro when they are
clicked - it could be the exact same macro, if there was some way for
the macro code to know which shape called it.

The blindingly obvious creation of a separate macro for each shape is
more than I can expect the end-users to know how (or remember) to do;
a sad situation, but factual.

Application.Caller doesn't work for shapes and I'm running out of
good ideas to try. Since clicking on a shape doesn't select it, I
can't use the .Selected property...

Is this one of those "Well, who would want to do that?" things that MS
either decided to ignore or never thought of - or has someone cracked
this particular nut?

Any help most gratefully accepted!

James