The guys weigh the benefits of a Sheldon free summer versus the fame associated with confirming string theory.
Read MoreCoffee's Unintended Consequences
After telling Sheldon the benefits of coffee, Penny regrets giving Sheldon his first cup.
Read MoreDry Cleaners Shouldn't Make Keys
Sheldon doesn't trust Penny's dry cleaner because he also makes keys.
Read MoreWhat's it Take to Talk?
Sheldon decides he will not speak to people about theoretical physics but Leonard provides an incentive of going to the comic book store.
Read MoreSex vs Halo 3
Sheldon attempts to a make Howard choose between sex and Halo 3.
Read MorePenny and Leonard return early from dinner because Leonard hits his head on the table while retrieving an olive. On the car ride home Leonard vomits out the window. Penny believes they should go to the hospital because he may have a concussion but Leonard assures her that it's probably just because he gets carsick.
Causality
In this episode of The Big Bang Theory, Leonard and Penny go to dinner. Unfortunately for Leonard he hits his head and starts to bleed.
Read MoreThe guys are playing an online game, presumably World of Warcraft, and begin a massive battle. The goal is for the group to obtain The Sword of Azeroth. While the group is getting ambushed, Sheldon sneaks away, grabs the sword, and teleports out. He then sells the sword on Ebay where, ironically, Wolowitz ends up buying it.
Self Serving in World of Warcraft
In this episode of The Big Bang Theory, The guys are playing an online game, presumably World of Warcraft, and begin a massive battle. Sheldon does what is expected of his character.
Read MoreThe opportunity cost of doing an activity is what you give up. In this episode of the Big Bang Theory, inviting Penny over for lunch makes it so Leonard and Sheldon can no longer watch their TV show. A short clip like this can get the students interested in economic concepts on week 1.
A Girl vs. Battlestar Galactica
Leonard suggests inviting Penny over for lunch but Sheldon reminds him of their plans to watch season 2 of Battlestar Galactica.
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