Thanks to the assistance of friend (thank you, Christopher and Philip), I was finally able to re-discover the location this sculpture on Wellington Street, at the north-east corner of Wellington and John. I took the pictures several years ago, and when I went to label it I realised I wasn't sure where it was taken. All I remembered was that I'd been walking from the GO Station on Front street up towards Spadina Avenue, via various side streets.
I'm sure I've made the humour clear enough here. I just love that sign, which of course is really only funny if you think the sculptures look like dogs. But still... heh.