This story is definitely worth checking out, here.
“It’s difficult to find privacy in Mexico, least of all if you’re traveling with a low budget female impersonator show. Yet I did the best I could to exercise my voice under the circumstances. I stretched my lips around the circumference of a small plastic cup, ludicrously exposing my teeth, and recited, ‘how now dirty cow…’ To avoid breaking the seal around the cup, I directed the words through my nose. Chichi found this unbearably funny, and doubled over laughing so hard he nearly lost his wig. But didn’t Plutarch advise traveling orators to practice continuously, even in hotels (like the sophist Hippodromas), and ignore those who mock them? For me there was no turning back…”
For more, see http://nthposition.com/ripofftheearssearching.php