The Allstate Insurance “Mayhem” work from Leo Burnett in Chicago has become one of my favorite campaigns of recent memory. And since I have three small children frying my brain, recent memories are all I seem to have. The spot below, entitled “On Hold Mayhem,” has been in fairly heavy rotation since late December (2011) and may just be my favorite yet. Why? Nice use of Casios, that’s why. Enjoy.