"Oh my! I seem to hear a strange whistling noise in my ear! I should probably get that checked. Hmm? What's this? My shadow has grown considerably - and taken the shape of a Grand Piano! My, how bizarre. And see how it grows larger still! Perhaps I should stop labouring the point and get hit by the pia-"
or
"No no no. You seem to be afraid of the snake, when it's actually completely harmless! You see, I'll show you! Just put it's teeth in my wrist... and... ther-"
or maybe even
"Ha! That'll show you, and your large weapon!"