William Tracy <wtr### [at] calpolyedu> wrote:
> M_a_r_c wrote:
> > The kind I really hate is those screw heads designed to be screwed but
> > impossible to unscrew. they have 2 helicoidal ramps.
>
> Oddly enough, I've seen those used to hold bathroom stalls together. I'm
> not sure if they thought someone would disassemble the stall and steal
> the parts, or what they were thinking.
>
> --
> William Tracy


Know any junior-highers?  That's why they can't be unscrewed.  :)

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