Innerpeace 's video: The Big Bang Theory TBBT - Sheldon social skills and Professor Proton is a Pervert

Sheldon, Leonard and Amy run into Dr. Arthur Jeffries (Professor Proton) at the drug store. Arthur emails Leonard to ask him to review his recent paper. Sheldon wonders why he was not asked; Amy says he comes across as annoying. Sheldon goes to apologize to Arthur, but annoys him more. The next day, Sheldon informs them his new friend is another famous TV scientist, Bill Nye "the science guy". After Sheldon and Bill leave, Arthur asks Leonard why lives with Sheldon. Leonard explains he is the smartest person he knows, despite his quirks, and they need each other. As Leonard's answer moves him, Arthur asks Sheldon to read his paper and even stays for a cup of tea but only after seeing Penny in the guys' apartment