My parents used to buy these frozen breakfast sandwiches. The package instructions say to microwave for 2 minutes and 30 seconds. One morning, I suppose my mom woke up extra tired because at some point, the smoke alarms were going off and the whole house STUNK. I heard the microwave going, looked over, and there are 11 minutes left on it.
She must have accidentally hit an extra zero and set it for 23 minutes.