Not the brightest tool in the shed

This is a mash up of “not the sharpest tool in the shed” and “not the brightest bulb in the chandelier” (or “not the brightest”), both idioms describing someone lacking in intelligence.   Of course it had to be me who uttered this one to my wife who promptly pointed out the mix-up.  It reminded me once again that I really am not the brightest tool in the shed.