Game! - Where the stick is mightier than the sword!

In inventory, in "Combinatorial Knowledge", there's an "use" button next to "Pair of Black Knight Legs" and "White Golf Ball".
When clicked, a message "That item isn't usable." pops up, which is obviously correct
But there shouldn't be an "use" button if an item isn't usable, IMHO.

It's there just to throw you of course and confuse you

Oops, fixed.