Squirrel Crasher?!

Melissa Brandts and her husband were hiking in Banff National Park in Alberta, Canada and decided to take a portrait of themselves with spectacular Lake Minnewanka in the background. Melissa set up the camera and went back to pose, and her husband held the remote shutter release. Meanwhile, attracted by the sounds of the autofocus, an inquisitive Columbian ground squirrel, common in the park, popped up to investigate. Click! "Self-Portrait With Ground Squirrel" was born.
(Source: National Geographic Online)