SERIOUSLY. I bought a mouthgaurd thing the day after the class. I don't know what I'd do if I didn't have it. As several instructors have told me, "Those people are collapsing for a reason, if it's contagious you don't want it!".
I 'm sorry, I can't save your life right now, I don't have you in our system, so I can't put any orders in just yet.