[GGG]

Originally Posted by Fuzz

Oh! This discussion maybe steered me to a solution?

Spoiler!

Because you are last, there is a 50% probalbilty you get your correct seat, because before you, there are 2 seats left. If the dumb passenger has caused an unresolved chain reaction, your seat is blocked. If the reaction is resolved, your seat is not blocked.

Spoiler!

I think you are right with the wrong logic

The question is does the jack asses seat or your seat get filled first. Anyone who is sitting in their own seat doesn’t matter.

So person sits in own seat, doesn’t matter nothing changes. Jackass sits down equal prob of him having his seat or your seat. If neither occurs we created a new Jack ass. Eventually new Jack ass gets on and again is 50-50 of sitting in the Jack ass or your seat. If neither of those conditions a new jackass is created.