Whats worse is getting someone who sweats profusely. While they are pinning you, their sweat runs off their face on you or splashes nearby. Yech.
I am not sure that the fungus that causes athletes foot can survive out of its typically environment for to long. It likes dark wet/moist areas. I am not sure if the canvas is a good "conductor/ transfer-er/medium" for the fungus. I must say it has crossed my mind