A buddy of mine had a gear failure in his Mooney. Brake line had come unsecured, prevented one main from coming down. He was on the ground, nosewheel and one main, and something seemed wrong as he started to settle where there was no wheel. Another airplane behind the hold short line keyed the radio and said "Mooney, your gear is up, go around." He did. Tried to get the gear down by manuvering to no avail. Ultimaltely landed on the hardtop, gear up, flaps up, and he only pulled the mixture when he had it made. Minimal damage to the belly, he was able to ferry it to have the skins replaced. No damage to the engine. Prop was destroyed. He had to pay a $200 deductible to get a new prop. Worked out good, as his prop was close to overhaul anyway.
-- IFMU