And make sure that even in the most unhappy cases, you vent your tanks! Vent vent vent vent! Tank explosions are where the really nasty debris numbers come from.
What do you do with the added deltaV from the venting? (not sure if significant)
It could send the already-out of control rocket stage/object to a weirder or worse orbit, increasing the changes of collision.
Ideally you have several vents perpendicular to the orbital path and open them at the same time, so the vectors cancel out. That's the happy case. If, because we are in the sad case, we can't get that, it's still better to have one piece of debris versus thousands.