I found it strange that I never seemed to set those off even with some metal objects in my pocket. Maybe I have iron-poor blood. (C;
Of course, I haven't pushed my luck recently with the sensitivity cranked up a bit. But there was that time a few years back where I forgot I was wearing steel-toed shoes.
I can top your steel-toe boots. My dad always delighted in passing through the metal detectors even back in the 70s and 80s (he passed through the big metal detector in the sky in 84).
The 9 inch long plates used to hold his right thigh bone together would get everybody excited. He just doesn't know the fun he's missing these days. Wonder if St. Peter had to get his wand out?