Related to my Kaddish on a plane question, as well as this Davening on an airplane question, assuming one is aware, and respectful, of the ruling not to form a Minyan on an airplane, what should one do if an airplane Minyan is forming (or has formed)?
Should one join the Minyan:
a. if his participation gives the Minyan its 10th man?
b. if it is happening without his participation anyway?
Should one discourage the Minyan, which could potentially create a larger disturbance?