Often I see elderly people walking out and about in the city center, even in the ice and snow. They often have these walkers that look like they are built to perform well on slippery surfaces. Good for them!
Today a student came to class on crutches, and when I took a closer look, I noticed that the crutches had retractable spikes! SO HARD CORE. Unless these are how all crutches are and I've never noticed?
