Originally Posted by inspector747

Not a stupid question, but no they will not go off with just a splash, there needs to be a significant amount of water (Almost submerged) to activate the device

Here's a video (not the best)
https://www.youtube.com/watch?v=5OOyv1kwnx8

Originally Posted by Dan27

So what are you guys wearing when you are running hard or at poker runs? I thought that was what these were for?