Whilst taking part in Operation Goodwood east of Cagny, Lt John Gorman who was a Troop Commander in the 2nd Armoured Battalion was probing forward in his Sherman tank "Ballyragget" when suddenly he found himself broadside to a German Tiger II, the German heavy tank that no-one had yet seen. He fired his 75mm gun but the shot bounced off German tank. He was unable to fire again as the Sherman's gun was jammed. By now, the Tiger Tank was traversing its gun towards Gorman's Sherman so he ordered his driver L/Cpl James Brown to ram the German Tank. The collision disabled the Tiger and caused its crew to bail out. After seeing his own crew to safety, Lt Gorman commandeered a Firefly, "Ballymena", whose commander had been killed and continued to fire at the Tiger tank with the Firefly's 17-pounder gun until the Tiger's destruction was complete. For this action Lt John Gorman was awarded the Military Cross and his driver L/Cpl James Brown was awarded the Military Medal, being the first of the Allied Expeditionary Forces to knock out a Tiger II. However, the German account is rather different. The Tiger II gunner, Hans-Joachim Thaysen, insisted he never even saw Gorman's Sherman and was instead concentrating on firing ahead of him. Thaysen also said that it was a German anti tank gun friendly fire incident which was likely trying to fire at Gorman's Sherman that destroyed his Tiger II, which caused the crew to bail out. The 75mm PaK hit the Tiger II on the left side between the track and running gear. Thaysen said the round penetrated and just missed him under his backside.