Phones are expensive, but they’re so common that many of us take them for granted. We let them fall from our pockets, leave them in restaurants, lose them on planes, and head off to the bathroom with our phones at the mercy of our obnoxious friends.

It turns out people (and animals!) who find phones just can’t help but leave a little memento behind.

And as you probably know, plenty of phones don’t need to be unlocked with a password to take a photo, so anyone can bestow the gift of the selfie upon you.

These 60 photos are ones smartphone owners found in their albums and they KNOW they didn’t take themselves. Some are mysteries while others are anything but.