And what if there was a serious issue in-flight? You are telling me that a drunk/high stewardess on SW1380 would not be a threat to life and safety? That’s part of a flight attendant’s job, since the pilots can’t exactly leave the cockpit during an emergency to orchestrate the passengers.

The flight attendants are in charge of safety in the cabin. What if they had a serious issue in flight, and she was too drunk/high to do anything? I’d say that qualifies as endagering lives.