I'll admit to it, since it was a recent 'dee-dee-dee' moment for myself. x.x But it was still funny.
Last weekend was AWA (Anime Weekend Atlanta), so my friend and I go up to the hotel where it's being held. On the way, I decide I need to make a call to my mother for something or another which I forget, so I reach into my left pocket and pull out my cellphone. Only, it's my mother's cellphone. (We have the same type, only different skins, but both pink-ish). So I'm all 'Oh noes! I got Mom's cell instead!' I think I needed to call someone at the con and didn't know their number, thus the upset. So I call home and leave a message. Then I call my phone, since the home phone didn't pick up.
And I hear my phone go off from my right pocket.
*facefault*
...Deedeedee!