An Air France passenger was settling down to fly from Paris to Los Angeles, Monday (Feb. 18), when she noticed the man sitting across the aisle was taking off his pants, shoes and socks.

The unusual experience happened to passenger Lizzie Thompson before the plane took off from the airport and she could not resist uploading photos of the incident on Twitter. “The man in the seat across from me has taken HIS PANTS OFF for the flight and is just in his boxers,” Thompson wrote in a tweet. “Flight attendants seem unconcerned. This is going to be a long flight @AirFranceFR #CDG to #LAX. “

Although the face of the man was not seen in the pictures she posted, his multicolored boxers were completely exposed in the snapshots taken of the man’s backside. The seat which was assigned to the man had extra legroom and so in one of the photos, he could be seen spreading out his bare legs and sitting comfortably.

In a follow-up tweet, Thompson said as soon as the man in boxers saw a man with a ukulele board the flight, he gave him a shout-out, requesting the latter to sit next to him and play music. However, ultimately, the ukulele was not played on the flight.

Two hours into the flight, the man got up and took four mini bottles of wine from the cart. It was not immediately clear whether he had paid for the bottles. This was followed by a six-hour-long nap after which the man got up and put on a puffy blue jacket but still did not wear his pants.

While all of this was going on, Thompson said she tried complaining about the man’s bizarre behavior to the flight attendants but was met with a less-than-enthusiastic response from them. “Update @AirFranceFR - alerted the flight attendant. He offered to move me (which would mean losing my bulkhead legroom) but just shrugged when I suggested he ask the man to put his pants back on,” she wrote.

The man did eventually put his pants back on. “Finally, his pants went back on. Good news: nothing bonds a group of passengers like a man half naked in your section. Shout out to the flight attendant who slipped me extra wine and did keep checking in to make sure I was good,” she wrote.

Although the nationality of the man was not known, Thompson confirmed through a tweet that he was neither an American nor French. Thompson’s posts were met with hilarious reactions from other users. “I am intrigued by the possibility that he believes that one must wear seatbelts and pants for take-off and landing,” one user wrote, while another tweeted, “Lol! I can picture some of you pinning him down in the aisle and the others in the section wrestling his pants on him.”

Air France This is a representative image of an Air France plane getting ready to land on the tarmac of Roissy Charles-de-Gaulle airport outside Paris, Nov. 13, 2008. Photo: Lionel Bonaventure/AFP/Getty Images