Originally Posted by apirchik
I don't believe one can be sues for eating a cheeseburger on a flight. However, I cannot predict the behaviour of the surrounding passengers at a specific flight.
I really don't think the behaviour of the surrounding passengers is the issue. It is the gross insensitivity of the passenger with the ham sandwich. (NOTE: I think that meat and milk, despite being a stricter halachik prohibition, has less cultural connotations. The average westerner will know that Jews in general find ham offensive, but is unlikely to be aware of the meat+milk problem).