Batman: The Animated Series1992

The Scarecrow:
[Confronting Leon the Bookie's lackey] Lost? You have that bewildered look... but your sort always does.

Leon's Lackey:
I ain't lost. I'm looking for you! I wanna know how come you always win, Mr. "Lucky".

The Scarecrow:
It's quite simple, actually. I fix the games.

Leon's Lackey:
You can't fix all those sports, nobody can.

The Scarecrow:
Oh, he of little brain, allow me to illustrate. [holds up an envelope] Here. You can read, can't you?

Leon's Lackey:
[Lackey takes the envelope and reads it] "Boo!" Hey, is this some kinda joke?

The Scarecrow:
It's no joke, I assure you. It's the fear of victory, and the agony of... [Lackey grabs him and reveals his true form] The Scarecrow! So now you understand step one in how to fix an athletic contest. I shall proceed to step two...

Leon's Lackey:
No! No! Get away!