This is one of the many (meaning more than "a few") videos I have of Bella.  I like to consider the videos as a set of tests/experiments that help gauge how well Bella can overcome obstacles to get a desired reward (treat). In this particular video, she is blind-folded. I think it is very interesting that although she clearly couldn't smell the treat, her first instinct was to sniff it out, and only after that failed, she took off the blind-fold so she could see.