Many folks made their mark during their tour in RAFG. Mine was a big oil stain on the ground behind Gutersloh's ESG when an off-load of heating oil didn't go to plan. My stunning career/freedom was saved because some electronic cut-out wasn't connected to the tank and MPBW/DoE(remember them?) had fitted the wrong dipstick (IIRC it read something like 40,000 ltrs max capacity instead of 24,000).