Those two guys were stupid. They made their intentions as obvious as they could without being immediately aggressive (they might have done better trying to take the trio hostage outright).
Our heroes should've said they were camped with RV's somewhere with a helluva lot of armed people...instead of letting their bad poker faces give away the farm.
Glenn isn't the best back-up. He's lover, not a fighter.
Lori is retarded. But that's been established.
So was Beth scratched by her dead mom?