Taking off, or attempting a take off, with contaminated wings seems to be a recurring issue.
So what do you do if you are sitting on board and the plane taxis onto the runway with this situation?
Jump out of your seat or hold on and pray?
20driver
Been there, done that, albeit with a lot less contamination than on this video. I jumped out. It is not a nice thing to do, but the alternative is far worse.
A: the other pax think you are an idiot until the captain comes on the PA to explain the reason why we are suddenly de-icing: you become an instant hero
B: the cabin crew think you are an idiot who cannot distinguish the call bell from the reading light until you physically get out of your seat to wave at them.
C: you yourself feel bad for interfering with other professionals doing their job
But you get out of your seat and you do what you have to do. I think we all would want you to do it if we were sitting fat dumb and happy in the flight deck having overlooked the fact that there is contamination on the wing.