Wanna Fight?

I hear this every day, usually from Charlie. "Wanna fight, Amarin and Jacob?" Meaning...let's pretend we're beating the tar out of one another, and fall on the floor in a big heap. Amid this "fighting" is lots of giggling, and "boy noises" that sound like action figure cartoons, as well as an occassional "Ow!" Boys...they are one big ball of energy! And those of you with all girls...don't ask me to explain it. Just know there's a whole lot of testosterone here!