Consider this: The English crown during Colonial times would grant it's customs agents a "general warrant" allowing them to search any home or business for untaxed or contraband goods, but they could only use it during the day and only after they knocked to alert those inside that they were coming in. In response to this, Our Founders cited this as one of the reasons to take up arms and shoot other men down on the battlefield.

Meanwhile today, police can pull a warrant with garbage information, perform a military raid without knocking in the nighttime when a normal homeowner is asleep, and charge any homeowner who uses force with a crime. It's especially bad when one considers that people awoken from deep sleep will experience the adrenaline surge of the "fight or flight" response and may not be alert enough (grogginess from deep sleep) to properly assess the situation for decision making. However, in the legal world they are expected to perform flawlessly in their recognition of the situation while police mistakes or errors of judgement are forgiven "because the job is dangerous".