"It was pretty disturbing to be honest. It was completely out of line... It begs the question for how long Mark Todd was treating horses this way."
Authorities didn't appear to be too perturbed about it, Appelbe said.
"The British Horseracing Authority has commented that Todd would have likely damaged the reputation of the industry. I have to say they're not exactly helping matters with this ban."
Appelbe said we ought to think more widely about how we treat horses.
"There's a wider discussion that ought to be had here which is the use of whips in equestrian sport... I think their day is done. I don't think whips should be used at all on horses."
Todd has apologised for his actions.