[gcheong]

And still I get my neighbor's mail.

[gngeal]

That's because programmers still write code with off-by-one errors!

[Retric]

Thanks for that. Mostly I look at HN jokes as a waste of space, but that was just perfect.

[ars]

That happens when one of your neighbors either got no mail that day, or had their mail held.

The mailman gives the next stack to each house in turn, and apparently didn't notice the address was off.

In my case it always happened when it wasn't my regular mailman.