If someone isn't wearing a mask. I think beating someone up to the point where they're bleeding, snot is coming out and spitting inside a sealed aircraft isn't the best method during a pandemic.
According to @michighclub on Instagram, there was panic and a violent brawl when an unruly English passenger on board a KLM flight to Ibiza had been drinking. Two passengers refused to wear face masks and their behavior towards other passengers was apparently hostile. Although, 2 arrests were made. You can watch the video below
Here's another angle of the fight.