nefarious ones as well. it's a mystery without a final page. >> i want to go the jim tilmon. we talked about this at the beginning. do pilots keep their cell phones on in the cockpit or ever use them in the cockpit. i would think, yes. >> the answer to that is yes, particularly sitting at the gate on the ground when they're not involved in any other part of the flight operation. but once the doors are shut and that sort of thing, the pilots that i know stow that found away and it stays there until such time as they are back on the ground and chalked again. it's not a common thing to have a cell phone conversation from the cockpit of an airplane in flight. >> jeff wise, a similar question i asked brett larson. i have heard up to 30% of cell