You asked what is the secret of a really good sketch. And it is a sketch is a small play. It's got a beginning, and a middle and an end. It should have a plot; it should have the characters, conflict. It is a little play. And in it, will be funny stuff.
As long as you gave it your best shot, even if in the opinion of others 'you failed,' you didn't fail.
There are guys you give the benefit of the doubt if they hold you up a little bit longer than normal, and you have that list of guys you kind of know are going to be a problem when you get there. The window of being patient with them is a lot shorter.
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