flop-shank
US Veteran
As mentioned earlier in this thread, because they're mistaken and think it's someone else's house, or that someone they are looking for is living there, even if they aren't. Then there's the flip side, in which case the home invaders aren't even cops, despite yelling "POLICE".... I'd still question WHY LE would be breaking down my door...
As for me, whoever smashes down my door at 2:00 a.m. had better be prepared for plenty of much needed buckshot in their life regardless of who they are. I abhor the thought of shooting it out with friendlies, but in such a no knock scenario, they would do us all a huge favor by coming up with a better plan such as staking me out and pulling me over while I'm driving, or executing the warrant while I'm at work.
All that said, the thought of harming law enforcement is frightening and downright nauseating.