Cougar fighting is not a recommended activity, but Will Gibb of Red Deer, Alberta seems to have some skill at it. When his dog was attacked by a cougar in a Tim Hortons parking lot he attacked the cougar. He eventually managed to chase it off and the dog, Sasha, was treated at a local vet clinic for cougar bites. Sasha will make a full recovery.
There's no word whether the cougar was there to get a double double or not.