As an anesthesiology resident, the philosophy we are taught, clinically and in our national society's opinion, we are not only supposed to master ACLS, but be able to teach it, and especially apply it.
'ACLS is something only to pass' Frankly I take offense at any MD/DO who doesn't care about it. As a physician in the room, wherever you may be, sipping carbernet at a steakhouse, or in the ED at 3 am in podunkville, and someone falls to the floor, a baby turns blue, heart rate goes from 100 to 0, etc........
The people in the room will turn their eyes to you...and expect you to do
SOMETHING....are you comfortable with being one of those in the room who slide to the back of the crowd as someone jumps in...acting so proud/interested-just because you WATCH?
If you dont know/dont care about lifesaving...get the hell out of the way in a code..sorry but thats the way I feel about it.
Happy note: PLEASE -and I dont care what your specialty is, grab someone(ER doc, intensivist, pulm, Anes,etc) and try to learn the basics about intubating, the basics about mask ventilation, and learn how to slap a defibrillator on someones chest for crying out loud if you want to be called doctor.....now I am going to review acls myself

yes I am getting down OFF the soapbox! LOL