One time, i forgot my landing gear.
Too bad because the landing felt PERFECT otherwise . It was so smooth. So when i had slided to a stop, and repaired, the engineers picked up my plane, and dropped it again and kept setting me on fire.
Everytime after repair i thought wtf ?!
Then i realized that my gear was still up, so while i was on fire and on the ground, i pressed "g" , horrible noises , but finally when they repaired again, i wasn't on fire :)