A method, system, and computer program product for issuing an alert when a method of a live demonstration deviates from demonstration simulation actions. A computer receives a command to commence a demonstration simulation. During the demonstration simulation, capture logic of a computer is initialized. The capture logic records events of the demonstration simulation. When a live demonstration subsequently initiated, demonstration verification logic of the computer continually monitors, in real-time, events of the live demonstration and compares the events to the previously recorded events captured during the demonstration simulation. In response to detecting that a live demonstration has deviated from the recorded demonstration simulation method, the demonstration verification logic issues a non-invasive alert. The non-invasive alert may be issued using visual, audible, or vibration feedback cues in such manner that an audience observing the live demonstration is un-aware of the non-invasive alert.