MacPhail provides its own answer to the riddle!

[pegkerr]

A new sign has appeared below the original riddle ("Why did the rubber chicken cross the alley?") in the window across the alley at the MacPhail center. We thought our answer ("It wanted to stretch its legs") was pretty good. But I'll have to admit that the riddler came up with a pretty good answer, too:

To play in the RUBBER BAND at MacPhail!