Charlie Sheen -- Shots at 'Men' in 'Anger Management' Debut

Charlie Sheen wasted no time attacking his former show during the premiere of "Anger Management" last night ... taking some not-so-veiled shots at "Two and a Half Men" during the opening scene.

The very first scene of "Management" opens on a tight shot of Charlie (playing a character named Charlie) while he's on an angry rant ... saying, "YOU CAN'T FIRE ME, I QUIT!! You want to replace me with some other guy? Go ahead! It won't be the same!"

He adds, "You think I'm losing! I'm not! I'm ... anyway, you get the idea."

When the camera pulls out, it reveals Charlie is only taking out his anger on an inflatable punching bag named BoBo ... while teaching his group therapy class about an anger management technique.

Not very subtle ...