Have you noticed your friends liking stuff on Facebook that you know they don’t like? Yes? No? Well, have you seen some people like stuff on Facebook even though they’re… dead? It’s happening. And it’s because of a weird underworld of fake Facebook Likes.

Read Write took a look at the odd phenomenon of fake or accidental likes, showing countless examples of people claiming they’ve never liked a company or brand even though Facebook showed them as ‘Liking’ it. Facebook says these fake Likes aren’t fake at all but rather “accidental” mistakes, possibly done by “inadvertently pressing a button, perhaps on the mobile app.” I guess. Maybe it’s a good time to audit all your Facebook Likes to see if any rogue Likes happened to you.

But how does that explain people who’ve passed away still liking things after they’ve been, well, dead? The picture above shows a zombie Like.

A Facebook spokesman says the “likes” from dead people can happen if an account doesn’t get “memorialized” (meaning someone informs Facebook that the account-holder has died). If nobody tells Facebook that the account-holder is dead, Facebook just keeps operating on the assumption the person is alive.

And the way Facebook operates is that it keeps on recycling and re-using a user’s Like. So if you Like something from a long time ago, it could pop up again as if it was a bradn new Like. Read more about this weird Facebook phenomenon at Read Write. [Read Writer]