On the lawsuit/recovery train of thought: How does it usually work out (pay off) when one officer mistakenly shoots or otherwise injures a fellow officer? I would think this type of officer error would require financial compensation of the victim.
OK now, should it really make a difference whether it is another officer or an uninvolved citizen who is injured?
I think the two should be treated very similarly; maybe a bit more delicacy to the citizen who didn't "sign up" for such risks as those LEO's know they will face in their career.
edit* Maybe we could just eliminate toilet tanks & equip warrant-serving teams with a utility specialist to turn the water off? Maybe a backflow device to insure complete loss of pressure in the house? How many "no-knocks" would that avoid?