Person
1: I could jump across that river.
Person 2: No you couldn't. You would fall in and drown.
Person
1: Nah, I could make it.
Person 2: There is like a .00000001% chance that you could make that jump. That's pretty freakin' impobable
dude.
Person
1: But not impossible *tries to jump across river, but promptly falls in*