How it feels the rest of combat after getting a crit

Worse still is when the dicey deities decide to toy with their players...

RP leading up to combat where you have a healthy modifier? Nat20 nice and simple...

Very important roll in combat that otherwise might lead to needing a death save? How's that roll just shy of the AC looking for you?

I once rolled three nat-20 attacks in a row. That was pretty sweet.