I am the runner and on a run I encounter a Chum, but I don't break its subroutine.
I encounter the next piece of ICE which happens to be a Woodcutter (rezzed with an Oversight AI) without advancement counters and thus no subroutines. I pass it.
Have I broken all subroutines on the Woodcutter?
If yes, I don't get three netdamage from Chum and the Woodcutter is trashed alongside the Oversight AI.
If no, I get the three netdamage from Chum and Woodcutter is not trashed.
I heard that you don't take the damage, and that Woodcutter is not trashed. But why should it be like that?