Worst passenger ever uses airplane vents to dry underwear

In all of the possible violations of airline etiquette, this may take the cake. 

A passenger on a plane in Russia caught a woman drying what appears to be children's underwear over the plane's vents. According to the video's description, she held the underwear up to the vents for about 20 minutes, and nobody complained. 

"The stewardesses laughed," the description says. 

We know traveling is tough, especially with kids, but please don't use the overhead air conditioning to do your laundry.