A month early, I think you'll find!
I've practised 2 tricks on my pupils lately - one is to ask if they have a dictionary... or can find one (even better <g>) - now tell them that as it's abridged there are less words in 'pocket' dictionaries, "for example, some quite common words are usually left out - for example "gullible"..... now wait for the smart a**e to point out it's still in his copy....
Number 2 - 'actually, if you have a powerful enough magnet it can pick anything up, even Blu-Tac' (press magnet gently into BT and lift it). From casual research 1 in 3 secretly think you were anything other than a lying weasel.