One gets the impression that Sheldon's childhood was horror even leaving aside the bullying he experienced as a result of his obnoxious personality. which was probably a little ''too'' descriptive for the otherwise overly literal Sheldon to be making an extended metaphor.
And then there was the analogy Sheldon once drew between schmoozing wealthy university donors for grant funding to being molested in the back of a van. Losing his father no doubt added to the trauma.
Among the lines are: "I'd be Doctor Who without the TARDIS", " Jobs without the Wozniak", "You're like uranium-235, and I'm uranium-238 Almost inseparable isotopes", "I'd be string theory without any string", "I'd be binary code without a one". He fills it with science and science fiction references in his usual nerdy style. He is singing what would his life be if he did not have her. Howard's song to Bernadette in the episode in the episode "The Romance Resonance" qualifies.There's something endearingly innocent in his total inability to behave like a normal human being. He's a man who can somehow make wearing a plaid suit almost sexy. This video explains perfectly as how the show makes fun of geeks, nerds, and those who aren't the strongest, or stereotypically "male," of the male gender (all four of the main male characters are all of these at once, as the show portrays).Ironically enough, a lot of the show's dialogue and references can only be fully appreciated by those with an interest in the aforementioned subjects. The show is infamous for its rather bitter and insulting humor towards science and nerd culture.However, many fans have noted that the relationship seemed more stable in the final two seasons of the show and the renewed playfulness resulted in fans jumping back on ship. The fact the two seem to have so little in common and joke often about how Penny had to "settle" for Leonard after he wore her down for years seems like a disservice to both characters. Abandon Shipping: In spite of the fact they are the Official Couple of the show, many fans jumped ship from Leonard/Penny after they got married.