Imagine being in the front row of this performance. You'd need a poncho or an umbrella. There's no escaping getting drenched. It's not like he can try to miss you. He's doing his thing. If he starts worrying about keeping the audience dry, no one is going to enjoy themselves. I'd be incredibly self conscious though. I do karate and when I sweat a lot I feel like such a piece of garbage. The mat where I was standing will be drenched. So gross.
Have you ever seen someone getting roasted so hard that they start sweating? I've seen it and it's a beautiful sight. It's like the brain is telling the body, "we're in a mayday situation! Run!" Next time you start sweating for seemingly no reason, just start running. That's what your body is trying to tell you to do.