There was a sqdn of Belgian Sabres detached to Wahn. At night they provided their own armed guard. One night a guard riddled a sabre from nose to tail. He said he saw someone climbing in to the cockpit, though it was probably the cockpit cover flapping in the wind! During this detachment another Sabre landed wheels up, skidded along the runway on it's underwing tanks but managed to take off again. It landed safely at the next attempt.