My personal favourite example from the allied side was a squadron of Tempests that saw a number of 109's about to bounce some UAASF P47's and attacked first. Their thanks, was to be attacked by the P47's, the Tempests simply ran, the P47's followed, firing at long range until they gave up.
The Tempests checked their aircraft and found that not one of them had been hit. That evening the Squadron Leader flew to the American fighter unit and found them celebrating their, I think it was twelve kills, they had been awarded for the days work. How I would have like to been a fly on the wall for that conversation
My second favourite was a P51 that attacked some Spitfires, they saw him coming and evaded the attack. However he kept attacking and the Spitfires kept evading until the Spits were given permission to fire back, but only with their .303's. This they happily did and the P51 was hit a number of times and finally flew off.