If the application of an idea is both in-line with its definition and shown to be inconsistent in foundation or correctness then the idea is either wrong, not sufficiently defined, or both. In lieu of a redefinition, it can be presumed wrong.
These are the natural shocks that test hypothesis and theory.
Having lived in a few many venomous-spider rich areas, I bang my shoes together while holding them upside down to prevent this. Only had a spider come tumbling out once but that reassures me that it does the trick.