A: all llamas are stripy
B: I don't know of a better way to put it: you're wrong.
A: Anyone who thinks all llamas are not stripy is clearly a buffoon.
B: You're quite wrong, the earth is made of green cheese
A: the earth is self-evidently not made of green cheese .
B: The evidence clearly shows that the earth is made of green cheese .
MoonShadow/FlameWar