Many tradespeople in the Avionic/Communications field have worked their socks off to obtain their 'Sparky' badge, but are they allowed to emblazon it on their woolly pully, or their coveralls or CS95's, NO, but it is still a trade badge, just like the 1 or ½ winged aircrew trade badge.
If only they had worked their socks off a few years earlier, at school.
