When I was a small boy growing up in England, the expression ‘ to have bats in the belfry’ was probably the most polite expression generally used to cover anything from extreme eccentricity to being daft as a brush.

Regrettably ‘to have pink batts in the attic’ although audibly similar lacks genuine resonance and refers in any case only to the somewhat unbalanced actions of a recent government rather than to any single member of society.