So I should be working on my presentation right now, but am instead cleaning up shattered glass and picking glass out of the top of my foot. It does however make me very glad that I have unusually tough soles of my feet. Probably from being a barefoot hobo a lot when I was younger.
As it turns out these things will bounce if they land just right.
Also as it turns out, it is very unlikely to land again in the same place, and will then proceed to shatter, on my foot.