 Now, if there is anybody still out there that doubts that animals learn from watching us, well, there is a marine in Ohio who would probably beg to differ with you here. Terry McLeod served two tours of duty, one in Iraq and one in Afghanistan. He was very seriously wounded by a roadside bomb and now copes with seizures and PTSD. McLeod has a service dog named Major, and recently McLeod had a seizure, a very severe one, and he collapsed.