Squirrel, so I can explain in a language they understand how dumb it is to change direction 5 times in the middle of a street with an incoming car.. How many times I've had a squirrel be 100% in the clear only to leap back in front of me when I'm rolling by at a staggering 20mph(choose, commit, conquer!!).. They really seem to enjoy pinecones too.. I wouldn't mind being that happy whenever I came across a pinecone..