Dave becomes obsessed with gender roles after attending Rex and Leigh's "Mad Men" party, so Julia tries to make him feel more like a man.
After Leigh's shrimp rolls give everyone food poisoning, Vance and Amy argue about her job as the wedding planner.
As used by some criminologists and others who study criminal investigations (including mystery writers), a perfect crime goes unsolved not because of incompetence in the investigation, but because of the cleverness and skill of the criminal.
In other words, the defining factor is the primary causative influence of the criminal's ability to avoid investigation and reprisal, and not so much the ability of the investigating authority to perform its duties.
There is an element that the crime is (or appears likely to be) unable to be solved.
When you think you’ve met the perfect partner through an online dating website or app, but the other person is using a fake profile to form a relationship with you.
They’re using the site to gain your trust and ask you for money or enough personal information to steal your identity.
Fraudsters may also use the conversations you have to find out enough personal information about you to commit identity fraud.
They’ll ask innocent-looking questions about you that make it look like they just want to get to know you, such as your date of birth, home address or family background.
Would-be perfect crimes are a popular subject in crime fiction and movies.