To climb a tree. He was having some confidence issues, so I wanted to build up his ego. I put a frizbee on a tree limb and convinced him to make the climb. He is a well adjusted "butch" K9 now. We are both much happier for it!
I had a black Scottish Terrier. I did a whole routine of tricks with him and at the end I would have him stand on his hind legs, I would say oh no, a bear, point my finger like a gun. I would say bang bang and he would roll over and play dead, until everyone applauded.
I haven not taught my dog this yet, however, in one video of a Shiba on youtube, the owner says "spread 'em", and the dog faces the wall, stands and puts his paws on the wall as if he were getting searched!