I like Greg in the lab and the field. He was funny and way more comical in the lab, but he wanted more. I would prefer to have him realize his dream than stay in a job that wasn't giving him more of a challenge. It's heartbreaking to see our little grow up, but it does happen and we have to be happy that they are happy. However, I hope that they do give him some lighter moments; he'll get enough of the serious, sick side of people later on.