Just popped to my mind and I started wondering if I'm the only one with this kinda experience.
So yeah, my voice is getting deeper and lower but I do have my not so glorious moments when I sound like a dying donkey or a squealing pig. I really don't mind them but I had a "piggy moment" when I seriously didn't need one...
Anyways, I was at a local store to get food and other necessities, like cigarettes. I sometimes get ID'd there because I'm not that regular customer.
I usually get very pissed off if I'm asked to show my ID because I haven't updated it to my new name because I'm lazy and all that jazz but on that one day, I wasn't pissed.
So, back to the actual case. There I was, about to pay for my stuff but first I needed my cigarette stuff (I roll my cigs and I was out of tobacco).
As I started my sentence to get I what I wanted, my voice obviously thought "Well, this is a fine time to rise up a few notches!" AKA make me sound like a little piglet squeaking. It totally made me sound like a minor kid, trying his luck to get smokes and of course, the cashier ID'd me.
Okay, I would've normally been irritated by it but not this time. Now I was in a hurry to get behind some corner so I could laugh at myself.

Still makes me chuckle when I remember that moment. :'D