Whilst theres some argument to be made that Kevin shouldve just rang the police once he thought that burglars were in the area, it beggars belief that the poor pizza delivery guy from Little Neros Pizza didnt ring the cops. From what were led to believe, the poor delivery guy thinks that hes being shot at by somebody with a tommy gun when he turns up at the McAllisters'. If this was the case, would you not be calling the police? Just think, if the guy did indeed call the cops then maybe Kevin wouldve been looked after and not had to deal with the Wet Bandits at all.