A few years ago I got sent out on the blind to cover someone else's route, in a raging snowstorm...not a great day.
My second to last stop was in a cul-de-sac, last house on the right at the top of a very large hill.
Long story short, customer watched me fumble through the snow to his door, and at the very last minute, let his very poorly trained dog out to 'greet' me.
I got bit on the buttocks - I refrained from beating the dog or the owner, but from then on, whenever I happen to deliver to that house, it's mostly NI1,2,3...