Most people put the laptop on the seat next to them or have a passenger hold
it. When they get tired of not being able to see it (either the passenger is
not holding it just right or the bright sun makes the screen impossible to
see) and tired of the power save feature turning off the laptop at
inopportune times and tired of the lid closing unexpectedly and tired of the
system crashing unexpectedly and tired of the batteries dying and tired of
cables wandering all over the cockpit and tired of the laptop falling onto
the floor and tired of having it and its cables crushed under the seat
tracks and tired of it falling out of the airplane and onto the concrete
whenever anyone gets in or out and tired of passengers tripping over cables
and falling on their faces onto the concrete when they get in or out -- then
they put the laptop away and never use it again.