Me: Excuse me, Judge? Does concession go on the stack?
Judge: No, it does not.
Me: You mean, that if my opponent concedes, I cannot respond with a Fireblast to force him to lose legitimately?
Judge: No.
Me: What if I bribe him to take the Fireblast and not concede?
Judge: Then you will receive a match loss for collusion.
Me: Let me get this straight - I can lose if my opponent concedes?