Facebook is randomly liking pages?

[deenee]

I don't have my facebook linked up to any other websites. I also have a different email for every single site I sign up to. I haven't gone on any apps on facebook either. But it has randomly started liking fb pages? Like I logged on today and it said I liked ' The Krusty Krab' . Its weird because I haven't searched anything to do with spongebob on the internet and I haven't talked about it in any fb messages, I used to watch it as a kid though but not a fan of it or anything? this kind of thing happens all the time