Quick Splices?

them blue connectors ant worth diddly! seen them on trailers for years used as a short cut to fixing lights right! then thay get wet, corroded and lose continuity! happens alot when a driver hooks up to go and trailer lights ant right, thay pull up to the shop and some dummy will use them to get the lights fixed to get driver out but next week another driver hook to trailer and back to shop for another light repair from mr lazywrench, for long end up with a ratts nest of mess and somebody like me end up starting at pigtail and rewire the hole thing, cause of a hand full of worthless blue quick connectors!! theres a special spot in hell for the fool that invented the dang thangs!