Picked myself up an edition of 'The Strike Wings - special anti-shipping squadrons 1942-45' by R Nesbit which has this startling photo in it, taken by Wg Cdr F E Burton (hope I'm not doing a copyright infringement here).
I'm guessing it was a head on situation, on a Beaufighter TFX, so pretty brave of the German facing 4 Hispano's. The pilot of the Beaufighter was 'temporarily blinded by dust and splinters' and if it were me, screaming like a banshee, but managed to land safely back at base. Incredible.

Edit, on further reading, could have been 20mm AA fire from a vessel based gunner