I hope you have the patent pending . . .
because this invention could sure come in handy ! I hear a clicking sound too . . .
( Valin Eschewing parts by the unit part . . ., Mon 26 Nov 2007, 18:32, archived)

that might just be a bit of limescale buildup
I recommend Cillit Bang.

...and I reckon tagging my pic is as good a patent-pending. If it works against thieving magazines, it'll work against rogue inventors.
( drbroon a poor wee monkey stole his face, Mon 26 Nov 2007, 18:35, archived)