The characters on 30 Rock all make questionable decisions at times but Liz Lemon has done quite a few terrible things.

What's the story behind Barney's Lemon Law for dating on How I Met Your Mother? Here's a breakdown of the law and if the idea caught on.

Almost constantly beset by low self-esteem and a critical lack of decent single men her age living in Manhattan, Liz Lemon’s love life is a relatable story that’s always a great source of comedy throughout 30 Rock. It’s also a great excuse to feature some of the show’s best-ever guest stars.

Liz Lemon might technically be a fictional character, but Tina Fey based the role very much on herself. She’s the head writer of a sketch comedy series on NBC, she lives in New York City, and she’s hilarious – she’s Tina Fey in everything but name.