Riley the dog is a bit of an adrenaline junkie.
How do we know this?
Because he followed his owner into an airplane... and then followed his owner out of that airplane before it landed!!
He's so CUTE! And soooo tiny.
He's Einstein and he's literally the world's smallest horse and he's playing with an oversize soccer ball and it's the best thing ever.
Check out the above video for some adorbz mini-horse goodness.