  == Template wizardry requested ==  Hi Gracenotes,  Clicking through Category:Wikipedians who like trigonometry on your user page, I found that Category:Wikipedians interested in mathematics doesn't list the trigonometry cat as a sub-cat, but does contain an infinite list of Category:Wikipedians who like geometry.  I traced that to Template:User geometry.  I briefly groped around for some template wizardry to add there that would do something like only adding the cat if the template is transcluded on a user page, but I wasn't sure how to do that, nor if it would be the best approach.  So now I come to you to ask what you would do and how you would do it -)  On a totally unrelated note (pun not intended (why do people write 'pun not intended' after making a pun?)), I heard your piano improvisation and it reminded me slightly of some Mike Oldfield composition, couldn't quite figure which.  Do you know him?  I hope you don't completely loathe his music -)  Regards,  