Situation where a marriage is threatened to be broken up over a suspiciously minor setback or argument, sometimes venting complaints about behavior which just surfaced. This can occur even after the spouses have jumped numerous hurdles in the relationship to be together, and usually smells of the inability of writers to do other plots or as cheap extension. From more capable writers, it's more of a Rant-Inducing Slight, the proverbial straw that broke the camel's back and unloaded years worth of pent-up frustration. Examples of Toilet Seat Divorce include: