Treatment of equine lameness. The treatment of equine lameness is a complex subject. Lameness in horses has a variety of causes, and treatment must be tailored to the type and degree of injury, as well as the financial capabilities of the owner. Treatment may be applied locally, systemically, or intralesionally, and the strategy for treatment may change as healing progresses.
At the end of Robert's Rebellion, King Aerys was slain by Jaime Lannister at the foot of the Iron Throne itself. Jaime proceeded to wait out the rest of the sack of the city by Lannister soldiers, and waited in the throne room for the late arrival of Eddard Stark and the main rebel army.
Yes, he's a real outside chance. As things stand at the moment, Jon is preoccupied at the Wall and doesn't even want to rule from Winterfell as Warden of the North, let alone the Iron Throne. Meanwhile, there's something that book readers know about Jon's story that may or may not prevent him from taking the crown.