Surprised he acted like that? Not really considering he just came off surgery and is supposed to be out for much longer. He's just crazy like that despite how loveable a name he has. This is the same guy who thanks his psychiatrist after winning a championship. Not to mention Artest beats up fans and has the elbow of a meteor.
This was recorded live yesterday during LittleKuriboh's stream. For the following to happen, viewers needed to raise $2000 (iirc) for AbridgerstoAlcon. The money was raised and this happened.