Argumentum ad Convenientiam

An argument to convenience occurs when a writer argues along the lines that if we choose to do one thing we will be unable to do another. This fallacy focuses attention on what can't be done rather than what can be done.  This fallacy is the improper use of mutual exclusion.

Example:

We only have ten Dollars left, and if we go to the movie, we won't have cab fare to go home.(There aren't other ways to go home?)

Strategy: Identify the conflicting options and show that they are really not mutually exclusive.

(Note: This fallacy, although seemingly similar to the False Dilemma, differs in approach in that while the False Dilemma forces one to choose between only two options, the Appeal to Convenience argues that, if one option is chosen, the other option will not be available.)