Flight attendants are trained to be the first line of safety on flights. 

But one Southwest employee could barely get through his safety spiel without nodding off and slurring his words.

In a video posted to LiveLeak, an on-duty flight attendant is seen struggling through the routine with a listless voice until he was saved by a nearby passenger.

“Prior to recording the video, the attendant was speaking into the handset, but had no idea there was no audio, until he pressed the mic button. It was then that the passenger reached for the phone,” commented the clip's poster who was flying to Dallas from Birmingham.

After appearing to forget part of his speech, the attendant then seemed to doze off with the phone still held up to his ear. He starts awake seconds later and gets up from the seat.

Southwest released this statement, reported by the Mirror

"Due to a concern raised by a Customer, we had supervisors meet flight 464 upon arrival into Dallas from Birmingham to assess a Flight Attendant onboard. Although the Captain onboard the flight and supervisors on the ground did not witness or detect any unusual behavior, the Employee acknowledged a potential reaction to new medication prescribed by his physician. We made the proactive decision to remove the Employee from duty for the remainder of the day."