I'll never forget the much-respected (and sadly late) Frank Hoare as Red 1 rushing towards my nose cone with brake failure on one wheel as he came 'through the middle' of the formation at the end of the landings - I was trying to find reverse with some agitation, but failed.
Another nice Gnat trick (yes, I am THAT old) was to knock off one of the low-slung maxarets on ONE wheel only by hitting an arrestor cable grommet, which gave zero brakes one side and full on the other.