Dave yelling 'ALVIN!!!!'
I always laugh when Dave yells "ALVIN!!!!" and how come he doesn't yell at Simon or Theodore?
shareAlvin is the one who always schemes, so he's the one to blame, hence being yelled at a lot.
Simon tries to obey Dave to the best of his ability, so he doesn't get yelled at as much. Same with Theodore, who is too naive and innocent to get into too much trouble.
That isn't to say they don't every get yelled at, though. In "Every Chipmunk Tells a Story", where they destroy Dave's baby grand piano, he yells ALL their names at the top of his lungs when he sees the mess of wood, cast iron, and strings at the base of the stairs (with extra emphasis on Alvin's name, since he was probably the ring leader).