The act of farting in a small car while driving and locking the power windows thereby trapping those in there with you, forcing them to sample your brand.
Driving with the wife, locking the windows, farting and then sitting there silently trying not to laugh, waiting for the slap on the arm as she asks if it is REALLY necessary to be hotboxing her in the Beetle.... LEONARD!!! FAWKER!! Open the window!!!