With news being slow on the weekends, I started a column called PSA Sunday.  As you can probably deduce from the title, every Sunday we post a PSA featuring TV or movie characters and/or celebrities telling you not to do something.  The first few weeks focused on vintage Star Wars PSA’s (the Cantina aliens in a “Friends don’t let friends drive drunk” campaign, C3P0 and R2D2 talking about the dangers of whooping cough, C3PO and R2D2 warning you about smoking) Clint Eastwood telling you not to do crack cocaine, and the Transformers warning kids about running away from home and not to bike without reflectors.  In addition, the other week we posted Nathan Fillion talking about Swamp Ass.For this weekend’s PSA, we've got Kaley Cuoco (The Big Bang Theory) addressing an important issue affecting cosplay girls across the globe: Slave Leia fatigue.  Hit the jump to watch.And for fans of Chuck, Zachary Levi directed this PSA.