For one week each year, the Discovery channel devotes its entire network to exploring humans' long-standing fascination with sharks. On HuffPost Live Wednesday, "Shark Week" expert Jeff Kurr joined to share stories of some of the most shocking and inspiring encounters with the animal that he's witnessed during his career.
In the footage above, Kurr shows some of the more foolish encounters that have been caught on camera. The first clip features a man who had a chunk of his calf bitten off by a fully-grown bull shark. The second shows what happened when a man attempted to kiss a nurse shark, a breed which is usually harmless.
Kurr told HuffPost Live's Nancy Redd that both accidents were the result of human mistakes.
"A lot of attacks are silly, people doing dumb things," he said. "You just have to have a lot of respect for the animal. They have a lot of power. They're great predators."