Final answer:
Providing a product with invalid input typically causes operating conditions to become unstable, leading to possible deterioration in system performance.
Step-by-step explanation:
When a product is given invalid input with no disastrous results, the operating conditions may become unstable. This is because the system may not be equipped to handle unexpected input, leading to unpredictable behavior. While the system may continue functioning outwardly, internally there may be errors or exceptions that are being handled, causing a potential slow down or erratic behavior which could eventually deteriorate the system's performance or stability. Despite these possibilities, proper error handling within the system can help mitigate such issues and maintain stable operating conditions.