Britain: issuing warnings for burglaries
The Daily Mail (UK) reports the new British policy: issuing warnings to burglars. The same for arson, threats to kill, auto theft, and assault with infliction of bodily harm.
So (1) you may not protect yourself but (2) the government won't protect you, or even punish the offender afterwards, either. Essentially, the society has just been handed over to the sociopaths.