Should I get him his own spray bottle to play with in the bathtub? Or do you think this would just confuse him and he would think it was okay to play with all spray bottles? I don't think he would know the difference.
Ps. That is his new favorite book. I reminded my parents that it was one of my favorite books and they bought him a copy for my birthday. :) I love it just as much as when I was a kid.