In retrospect, the iron was cold when I had set it down on the floor - but apparently I had not clicked it to the "off" setting the last time I used it - so when I set it down flat on the carpet - it heated up. So -
I will start to unplug the iron when I leave the area. Even though it is a bother to do so.
I have to crawl under the ironing board to do so.
Last edited by bearisgray; 06-25-2017 at 08:38 AM.