that actually happened the other day when i was on Teamspeak with my friend teaching him how to fly. Just as we took off for the second time (after being shot down) I was in the gunner seat. He wanted to know how to drop bombs on the AA guy, so I said "press F and then right click". Just as we got our nose wheel he did what I told him to do.... although at the wrong time. Bombs fell, the plane flipped on fire, everything was chaos (i was in 3rd person)... funny.
another strange plane thing is when me and a teammate were flying two different planes, we brushed our wings a bit and we both ended up suspended in mid air, slowly yawing clockwise, like UFO's for a few seconds. Then we both started falling and we couldn't jet up in time.