Not sure how to interpret your question. Maybe the answer is, learn about error handling and how to write an error handler. This is especially important if you modify app settings such as Warnings. You turn them off, then query execution fails (maybe because you deleted or modified it). You click away the error, code exits and you leave warnings turned off until a) something happens to reverse that or b) until next time you open db.
The more we hear silence, the more we begin to think about our value in this universe.
Paraphrase of Professor Brian Cox.