Bugger. It had to be me. Mine actually fall right out, the clips at the back of the cap don't touch at all.
Looks like I'll have to go nuts with some Sika.
I think Supercheap sells Lebanese Tool Boxes. Every Lebanese builder/developer owns one. You get a tool box and in it you get Liquid Nails, Sikaflex and Duct Tape. Apparently that's all you need to build a block of units these days [emoji12]

