Have you ever opened someone else's mail by mistake?

Yep, definitely. I used to have a mail carrier that wasn't very precise about sorting the mail. I open my personal mail like I always opened mail at work. Stack it, turn the stack with the long edge up, slit each envelope with the letter opener, then look through and sort it. I've opened my son's mail, (he lives next door) and my neighbor on the other side's mail, and people I don't have any idea where they lived, because the address wasn't anywhere near me.

I'd just put scotch tape across the slit, write opened by mistake, and my initials on the back of the flap and put it back in the mail box.

yeah I have opened else's mail by mistake but didn't do miss you,
thanks for sharing

That only happened to me once, I was expecting a letter and I was excited to see it that I opened it. Then I realize it's not for me. That was sad. I closed the letter and then put it in the mailbox.

i open mail not by mistake if it gets delivered to my house and i have no idea whose it is... 50% of it is so i might be able to decipher who it was inteded for and give it back, 50% is just to see if theres anything good inside i can use:/ who else doesnt?

LOL Yes I have. I live on the same block with someone who shares the same first letter of my name and exact last name. I have a number of time seen something addressed to R. W---- and not looked at the street address, only to be confused when I start reading the mail. Its ok though as he has done the same thing.

No, i don't opened someone else mail by mistake. I will see for who it email, before i opened it. Someone else have the same address with my home, if i don't know that name i will to inform an postman where is that address.