Seorang scientist terkeneal,Prof John telah mengkaji struktur2 otak manusia berdasarkan perbezaan keturunan,bangsa dan persekitaran. setelah 10 tahun, Prof John telah berjaya menemui perbezaan2 tersebut lalu mengadakan exibition di seluruh negara.. (Di exibition lab) tiga orang pemuda kacak antara pengunjung yang terawal tiba untuk menyaksikan penemuan Prof John dan mereka sempat berbual-bual dgn Prof John. Azri:Prof,what brain is this? Prof John:O,this is American brain. Azri:how much u sell this brain? Prof John: $50,000 Azwan:What about that brain? Prof John:that is japanese brain.i'll sell it 4 $60,000. Anuar:i think this brain is the biggest brain among others,must b more expensive right?how much it cost?? Prof John:oo0,its only $5,000 ketiga-tiga pemuda kacak menggaru-garu kepala lalu bertanya: why its too cheap??? Prof John:Because they never use their brain...