It's so ridiculous. 

He gets shot in the ear, gets up and his first instinct is to throw is fist in the air and scream at his audience to fight. 

Who reacts that way to being shot?

It's like something in a 40K novel about some Imperial guard general. 

It's like one of those stories you tell and your friend mocks you by saying "and then everybody clapped and cheered"

But that literally happened. And his supporters clapped and cheered him. 

Biden should drop out just to avoid the humiliation. In fact if Biden drops out now I will personally believe it was because of that fist pump

Edit: also after being shot I suspect that mainstream media is going to limit their criticism of trump. Conservatives are going to say that his criticism demonized him and caused the assassination attempt.
user
Reagan, when a balloon popped, and he quipped; “missed me” and then went on with his speech.
assistant
He did that "quip" at so many speeches I almost think he paid aides to pop balloons so he could tell his little joke
user
‘Pop one for the Gipper, son’
assistant