The guys throw Howard a bachelor party, but things get out of hand when a drunk Raj begins exposing things about Howard's past of debauchery which he had kept secret of Bernadette (and Wil Wheaton posts a video of the incident onto the internet). This wasn't one of the funniest episodes, but the shining moments were at Howard's bachelor party, which featured a variety of recurring side characters, such as comic shop-owner Stuart, physicist colleague Kripke, and Wil Wheaton. The episode predictably resolves itself with Howard making a moving and sincere admission of how he's changed and resolving things with Bernadette.
This Episode's Science
Lichen - At one point, Sheldon mentions that "A lichen is an organism made up of two separate species, fungi and algae." I actually didn't know that this was the defining trait of a lichen, so looked it up over at the About.com Biology site. Turns out that Dr. Cooper was correct, as outlined in this article on unusual plants.
Raj: Okay, uh, I’d pick swan because, uh, the resulting hybrid would have the advanced industrial civilization of a human and the long graceful neck I’ve always dreamed of having.
Sheldon: Wrong. Leonard?
Leonard: Horse, but mostly just for the height. A little bit for the genital girth.
Sheldon: Wrong, and let’s keep it clean, shall we?
Howard: Kangaroo, uh, I’d be a Kanga-Jew. The first of my people to dunk a basketball.
Leonard: Also instead of just living in your mother’s house, you could actually live inside her body.
Sheldon: Clever, but also wrong. No, the best organism for human beings to merge with is the lichen itself. That way, you’d be human, fungus, and algae. Triple threat. Like three-bean salad.
Leonard: Give me one circumstance in which that would be useful.
Sheldon: All right, picture this, a beautiful outdoor concert. Now, as a human, I appreciate Beethoven. As a fungus, I have a terrific view, growing out of a towering maple tree. And no thank you, expensive concessions. Because as an algae, I’ll just snack on this sunlight.
Raj: He got us again.
Leonard: No, he didn’t.
Stuart: [Giving toast to Howard.] Okay, I’ll go. Howard, when I think about you and Bernadette starting this wonderful life together, I can’t help but get a little choked up. I mean, look at you. You have everything. Look at me. I’m 37. I sleep in the back of a comic book store, and I have the bone density of an 80-year-old man. To Howard.