OUCH! Discovered there were dice on the floor of my bedroom while I was getting ready for the gym. All are harmless except the pyramid-like d4. Cut through my sock and skin to give a nice painful wound. It didn’t bleed for long as it was just a slight puncture. However, as per the rulebook, this is the amount of damage caltrops do in D&D, they’re not likely to kill anyone, just slow their movement to half. Good thing I’m exercising on an indoor bike and I have a desk job.