TFG's plane diverted to Billings instead of Bozeman

[mahina]

36. What are some reasons that planes are diverted?

-Weather- not this time
-mechanical problems- that would probably be reported
-emergency medical event- some possibilities include a panic attack, which is hard to discern from a real heart episode, and more serious things are. certainly possible, hope if that is true, we (the public) has eyes on the ground and it is reported.
(also not hoping for harm because I'm karma shy)
-passenger's behavior becomes out of control beyond the capacity of the crew to manage- certainly possible
or in the case of a private plane, maybe the passenger doesn't want to go where they were going initially. Others above suggest the attendance may not be enough to meet his...expectations.

Other possibilities?