While descending the Mt Lassen trail, Buster, the attack chipmunk started stalking me. No kidding, no matter where I was for about 150 vertical feet of trail, I would turn around and this monster was there, wanting my food or my wallet. Finally, he left me alone and turned his attention to a very attractive female hiker who passed me on her way up and I saw Buster no more. (actually not a chipmunk but a GOLDEN MANTLED groundsquirrel)
7-5-03

His cousin Squirrly is a highly skilled critter as shown below in this vid:




Via: VideoSift