So, one of my "problem customers" calls today at 10:10am.

I answer "Good afternoon"
It's Good morning.
For you...
*I receive a text message and my phone makes a noise*
You're playing Mario, aren't you and just got a mushroom?
No, I am NOT playing Mario.
Well, I just heard the sound when you get a mushroom.
Oh, so now you're saying I'm on drugs eating mushrooms?
No, I'm just saying it's the sound when Mario gets the mushroom.
You DO realize it's the same sound as when he gets the flower, right?
So, you can now throw fireballs?
Oh, now you're calling me FLAMING?
No.. No.. Ok, this conversation is over.

I love putting coworkers in uncomfortable positions by slightly twisting what they say! :)