I tend to doodle a lot while on the phone. And I usually don't pay attention to what I'm doodling, so the result is just as a surprise to me as it might be to you when you first set your eyes on my new doodles. It's like unwrapping a present...without the wrapping paper 'n stuff.
Here's a doodle that originated from a square. I was chatting on the phone with my dad when I created it.