for the worse when the supermodel laughed at first, prompting Blair to bite her finger again, harder.

 The second time, she did not laugh and exclaimed,  That really f-king hurt!' The Calvin Klein model then punched Blair in the back and grabbed the actress' thumb  and crunched right into it. 

As for why Blair felt the need to bite others, she writes that it is triggered by feeling  overwhelmed  in  social situations. 

Her recent Delta Airlines incident is also not the first time Blair - who was diagnosed with multiple sclerosis diagnosis in 2018 - has been kicked off a flight.

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In June 2016, she caused a commotion aboard a Los Angeles-bound flight after she allegedly mixed medication with alcohol.

At the time, she was traveling with her then 4-year-old son, Arthur Saint, and his father, Jason Bleick, when she was removed from the plane on a stretcher and rushed to a Los Angeles area hospital.

The  Dancing With the Stars  alum reflected on the  horrifying and humiliating  experience in 2024.

 I was so messed up and dehydrated and hungover and didn't know I had neurological issues,  she told Us Weekly.  I didn't understand anything,  she noted.  I had to grow up.