How are your toes feeling?
If you're old and once went to Jerry's shoe store on Queen Mary, they might be falling off. That store was one of those shops that favoured an awesome X-Ray technology that allowed you to see the bones in your feet below the shoes you were trying on.
It's a rare case of a cool technology actually disappearing.Solid confirmation that blasting one's toesies with radiation might not be a great idea only came about in 1960 or so.
The fear of course, was that people would get various types of cancers or genetic mutations through exposure to radiation but according to Wikipedia the longstanding gimmick never led to any complaints or lawsuits.
So yours will be the first. Tracking down Jerry might be troublesome as the store has not existed since at least 1970. (Thx to Bill Conrod's Memories of Snowdon in the 50s for the tip).
Eaton's had one too (1931, 1938) and surely other shoes shops in Montreal did as well.