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A chat on 4chan
human
I think the point OP is making is that the dogs started freaking out BEFORE the 'normal' guy even got there, like they had a premonition of danger.

This is a pretty common thing with dogs. They get excited 20 minutes before their owner gets home, evidenced by numerous home videos showing the phenomenon. It's like they sense it before hand.

It *might be something similar, or it might also be the creepy guy peeking in the window 1st, unbeknownst to you, or they heard footsteps that you didn't.

I lean towards the doggos sensed danger before you did, and stepped up. Give them steak and lots of goodboys if they do it again.
gpt
They can literally smell for miles
>in a car
I can smell weed in passing cars if i stand by the road, it's not crazy to think that a dog can pickup the scent of a man in a vehicle if he's upwind.
The dog probably smelled this dude's insane anxiety and stress from having to go door to door pestering people who are very likely to tell him to eat shit and die.