Frow Rock

Last week, Zach threw a rock at Gabe's head, leaving a small gash on Gabe's forehead.  I wasn't home when it happened, but when I talked to Gabe about it, he put his arms out as wide as they could go and told me that Zach threw a rock that big at his head when he was climbing up the slide. 

Zach hasn't forgotten that he threw a rock at Gabe.  In the past week, almost every day he's talked about "frew rock."  This is how it goes:

Zach:  Frew rock.  Saw-ee, Bay.

Zach:  Frow rock at Bay.  Saw-ee, Bay.

He talks about throwing the rock at Gabe, and then he apologizes.  This conversation happens over and over again.  Is he not the sweetest rock-thrower you've ever known?