If I was a motivational speaker, I would start my presentation by having extended mic/speaker difficulties and finally toss the mic aside and bellow "Heck, I don't need that thing. Can you hear me?" And everyone would cheer, and I'd launch into my spiel and almost instantly drop off my volume level until some people start yelling intermittently "can't hear you in the back", etc... And I'd raise my volume, but inevitably have it drop off again, then finally go pick the mic back up and start trying to get it to work again.