Why you're not allowed to play in the cockpit!!
 
FLIGHT DATA RECORDER (FDR) TRANSCRIPTS:
 
Cleaner #1:  "Hey Bob I really don't think were supposed to be up here."
 

Cleaner #2:  "Tony, you're such a worry wart. Anyhow, we're suppose to be up here remember,  were cleaning this bird."

 
Cleaner #1:  "Are you sure? I thought they told us to stay out of the cockpit"
 

Cleaner #2:  ""Hey look at me I'm a pilot!!!...(Deep Voice) Ladies and Gentlemen this is your captain speaking were at an altitude of 30,000 feet and Oh my God watch out for that mountain.........Ahhhhhhhh (laughter).

Cleaner #1: Hey man cut it out....Hey don't touch that it says "engine start" on it...
 
Cleaner #2: Don't worry....they always turn these things off while they're at the gate.
(Engine sounds in background....cleaners unaware)
 

Cleaner #2:  Ready for takeoff......VRRRRRROOOOM VRRRRROOOOM (Throttles rapidly moved from idle to full and back to idle and full again) WEEEEEEEE!

 
Cleaner #1: OH no were moving!!!
 
Cleaner #2:  WERE GOING TO HIT THE WALL RUN

(Cockpit door opens and slams shut.  Occupants heard running to back of the airplane screaming and yelling)

 
30 seconds later...... Throttles pulled back to idle.
 
(I Don't think those gentlemen have a job there anymore!!!)