I can attest to the fragility of the "Noddy Cap". As a young buck LAC rigger on 226OCU it often fell to me to spend a shift in the riggery repairing split Noddy Caps. The caps were stitched back together by drilling holes either side of the split and then threading locking wire through them to pull the split closed. The finished repair was then slavvered in mastic. Niiiiiice