That's too funny! My boys were all head bangers as tykes. My eldest used to take apart anything if you left any tools where he could reach them. My mother can attest to this since he took apart her patio furniture and her back porch door when she (Lord knows why!) gave him a screwdriver to play with.
My middle son used to put his forehead on the rug and spin in circles. I was afraid he was going to have a permanant brush burn. They have all taken flying leaps out of high chairs, pulled out the kitchen drawers to make stairs to get to the cookie jar. They get more water on the floor than on themselves in the tub where they pretend to drown their GI Joes and attack them with plastic sharks and dinosaurs.
When my two youngest are upstairs you can set your watch by the intervals between thuds and crashes and cries of "shut up!" My youngest must make 700 trips up and down the stairs everyday and also must slide across the kitchen floor on his knees.
Now that sounds like my two little girls (6 and 4). Sally has a voice that would strip paint from the walls (if only it were true, maybe her Dad would get around to the painting ...), and Elen, the older one, pretends she has no idea how the destruction occurs. I'm so tired of Elen's picking fights with Sally (and then complaining that Sally is screaming) that I told Sally she could hit Elen!
It's the opposite of the pair of boys ... I told Billy he could hit Tom, since Tom always starts everything. Only now Tom is heavier than Billy, so it's a good thing they're not in a fist-fighting phase at this point!