hahahaha the 3'6" photo with my lad, I trotted into that :P we were having issues with control before fences so I trotted him into it and then let him canter one stride out. Crazy athletic horse he is. Also had a pony, all of 12.1, that could jump 3' from a standstill.
Jumpers are such characters :P personality is a must in a jumping horse, they can't be bland and robotic.
My horse is only 14.3, but she thinks she's 17 hands. I bet she'd try jumping six foot, thinking it's not that tall, and fail miserably.