You would think that following the United Airlines fiasco for dragging a man off a flight, other airline employees would exercise caution when dealing with customers. Well, you thought wrong.

A video surfaced over the weekend showing an extremely distressed woman boarding a plane at San Francisco International Airport after she was allegedly hit by an American Airlines flight attendant.

According to TMZ, passengers said the incident escalated after the woman attempted to store a stroller in the overhead bins. A flight attendant who didn't permit the mom of two to bring the stroller on the plane, violently snatched the item, hitting her and narrowly missing one of her children.

Some of the passengers came to the sobbing woman's defence after the employee followed the woman onto the plane.

"You do that to me and I'll knock you flat," a passenger said to the flight attendant.

The woman and her family were upgraded to first class following the unfortunate incident. American Airlines has since released a statement confirming that the flight attendant in question has been "removed from duty" and an investigation is underway.

"We are deeply sorry for the pain we have caused this passenger and her family and to any other customers affected by the incident," the airline said in a statement.