Richard, we need a cunning plan for the course this weekend.
We need a course that is as cunning as a fox who's just been appointed Professor of Cunning at Oxford University.
We need to be devious, Machiavellian, sharp, slick, smart, artful, astute, cagey, canny, crafty, crazy, fancy, foxy, guileful, insidious, shifty, shrewd, slippery, sly, subtle, tricky, and wily.
Do you know anyone?