Whose Fault is it?!?!?

So, as we all know Joey is a typical little boy. He jumps, he runs, he climbs, and sometimes he will touch things he is not suppose to. Its those times when things get broken that raise a question. Whose fault is it? If he were at home and broke something because maybe I wasn't paying enough attention is it, my fault or his? The same goes for when he is not at home and in the care of others. This seems to be an ongoing battle between myself and Grandpa. Yesturday I arrived at Grandma and Grandpa's and noticed the chair sitting in the corner. One of the posts from the back of the chair was missing and there was a post it on the top that said "Joey was here". When I walked in I pointed to the chair cause I was confused, Was the "Joey" my son or my father. My father looked up and pointed at my son. Sooooo, needless to say it had appeared that Joey had broken the chair. My first question to my father was, "Well, where were you when he was playing with the chair". My dad looked at me and said (jokingly of course), you owe me $150. We both chuckled as this is not the first time Joey has broken something over there and my bill seems to be going up more and more each time. So the question remains...Is it Joey's fault or is it Grandpa's fault for not watching him closely enough? Hmmmm!

P.S..Note to Grandpa - I know it was actually Adelina who broke the chair and not Joey!