Rosewood isn't exactly the real world. Mysterious murders happen on the regular, a super-stalker devotes countless hours to tracking teen girls, and said teen girls have apparently endless closets full of the funkiest fashions. It's a heightened universe, and that's part of the fun.

Even with that in mind, there are occasionally moments on Pretty Little Liars that make us stop and say, "Really?" Sometimes it's something that doesn't make sense from the writers, and, more often, it's just that we want to reach through our TVs and smack the characters upside the head for making bad choices.

Here are our picks of the biggest logic fails and most WTF moments from Season 4, Episode 15 ("Love ShAck, Baby!"):

1. Ezra watching the Ali video at school. Hey, maybe this is proof Ezra isn't "A" — because we can't imagine "A" being dumb enough to watch such incriminating material in a classroom where anyone, including a Liar, could walk in at any time.

2. The Liars leave the diary out. Girls, you've been doing this for four seasons now. You should really know better than to leave something that important just sitting out. "A" can track you anywhere, and you know that.

3. Emily going off to meet Ali at her spot without telling anyone. This is another case of "you should know better." Fortunately, nothing too bad happened to Em this time, but seriously — she didn't stop to thinks that it could be a trap?

Did you pick up on any logic fails this week? Let us know in the comments below!

Catch the next episode of Pretty Little Liars on Tuesday, January  21, 2014 at 8 p.m. ET on ABC Family.

Rebecca Martin is an Associate Editor at Wetpaint Entertainment and our resident Game of Thrones, Breaking Bad, and genre TV expert. Follow her on Twitter and Google+!