That time when your pilot makes an announcement that makes you change your underwear.
Millions have now watched this mid-air race between two passenger jets full of people. You can see the other plane about a hundred feet to the right. Then the pilot announces he's accepted a challenge to race the other jet right next to them.
"Ladies and gentlemen, this is your captain speaking. If you look to the right side of your aircraft you will notice Flight 198 challenging us to a race. I've turned the fasten seatbelt sign back on because s*** is about to get real."
The plane the TikToker is on is a United Airlines flight, and the pilot accepted the challenge from an American Airlines jet.
The race takes place at San Francisco International Airport, with the planes on intersecting parallel paths to 2 runways.
So who won? The man who shot the video said in another post "Well they touched down first - but we didn't brake as hard so we ended up passing them."