How much trouble do you get in if you leave your phone on while on an airplane?

Question

How much trouble do you get in if you leave your phone on while on an airplane?

Answer 1

alot if it causes the plane to crash

Answer 2

None if they don't catch you.  They won't even know it is on unless you are trying to use it or unless it goes off.  There are phones on in luggage on planes all the time.

Answer 3

Well when the plane crashes I guess you'll figure it out for yourself that your in trouble.