how do the dog react to hal and charles's lack of knowledge about sledding ?

The digs are repeatedly whipped by Hal, as Mercedes cries over them. Buck does not like her, but tolerates her pleading pats. When the sled finally moves, it falls on it's side. Raging at the unfair treatment, Buck leads the team in a run, scattering the belongings even further and running the sled over Hal.