I used the sled-dragging joke before, in December 2008. It's even the same onomatopoeia. The drawing looks neater in the earlier version; I got fussy with the white-out on this one and didn't know when to stop fixing it. And I couldn't find the pen nib I usually use for lettering. The one I fell back on was feebler. Also, that's the worst signature I ever signed. Why you people read a strip with such shoddy standards is, quite frankly, beyond me.