15. We laughed when Sheldon went on an apology tour
After annoying his friends more than anyone thought was humanly possible, Sheldon was banished from the group camping trip. Obviously, this didn't sit well with Mr. Cooper, so out of his unwavering determination to be included, Sheldon pulled out all the stops to "prove" how sorry he was for getting on their bad sides.
Honestly, we don't know what was funnier: Sheldon thinking that a personalized T-shirt is enough to say sorry, or the look on his pals' faces when he handed over their silk-screened consolation prizes!