I had an amusing customer complaint today. First this woman came in, and complained that she was sick of music being played everywhere she shopped, and demanded to talk to a manager.
After he left (and I could tell he was writing her off, after all, she was complaining about more stores that just ours playing music), she turned to me.
"And another thing. Your voice is too high pitched. Use your normal voice."
"Um, ma'am, this IS my normal voice."
"No, I've heard you talk deeper." (Note that sometimes, when I'm being sarcastic or deadpanning, my voice WILL dip by a register or so. I'm a soprano, it'll go into the alto range. That's just how my voice IS.)
"Ma'am, that's also my normal voice."
She shrugged and left. The customer behind her thought it was the funniest thing she'd heard all day.
Note that the SC was the same woman who saw me reading a D&D module in McDonald's one day (The World's Largest Dungeon) and asked, "So are you a good witch or a bad witch?" Took me at least an hour to get her to semi-realize it was a GAME.