Airplanes are deemed too enclosed and compact to consider random encounters on board. Nothing is more distant from the truth. In this day and age of air travel random encounters in an airplane are an important aspect of any modern setting rpg. They can provide something for the characters to do in an otherwise boring transoceanic flight. Not to mention a plot twist!
Roll 2d6 and determine the random encounter
2 Liam Neeson
5 Rats (and 2000 nibbled boarding passes)
11 Ex-wife / Ex-husband
12 Hugo 'Hurley' Reyes