Reminds me of this apocryphal story:
TRUE PILOT STORY
"The C-119 (flying boxcar) flown in the Korean Conflict had more than one problem. A serious one was its tendency to reach takeoff speed then lose some power. If you were not aware of this and attempted to take off at proper speed instead of waiting another couple of seconds for proper power you could have a problem. This morning the newly-assigned co-pilot was paired with a hard-nosed Major as captain. The co-pilot was nervous and it showed in his actions. As they approached and gained take off speed, the Major decided to soften his image as difficult and turned to the new co-pilot and quipped 'cheer up.' The co-pilot executed the 'gear up' maneuver just as the power drop occurred. The plane came back to the runway without landing gear. No one was injured. No blame was placed for the incident."