Nature vs Nurture Part Whatever

I used to contend that boys were a product of their environment and not necessarily built that way. 

Boy was I wrong.  But it cracks me up to no end when I hear a 4 year old say something that any boy/man would say.

Walking him into school today, a cute little girl was ahead of us with her grandma.  I heard her say "Grandma, Paul is behind us!"

So I looked down at Paul and asked if she was in his room.  He didn't respond so I asked "What's her name?"

"I don't know, she's just a girl."

Yep, he's a boy.