Yes, I have. I lazily press the buttons on my pump through my clothing to turn off alarms to bolus for meals or to do a blood sugar. If I press too many times, which I have done whilst low, or when I think it hasn’t canceled, I have bolused by accident. Usually though, the pump beep beep beeps to tell me I haven’t finished a bolus, which alerts me to the fact that I was about to give myself a surprise one! Perhaps in your low state you heard the cgm alarm and thought it was an alarm for something else and tried to cancel it but gave yourself a bolus instead?