Banta And The Clock

Banta is in Delhi. He is walking on a street which has a Clock Tower when someone asks him if he wants to buy the clock on the Tower. Banta agrees.
'Give me a thousand rupees and I'll go get a ladder.' The man took the thousand and disappeared. Having waited for several hours , Banta figures he has been made a fool by that man.
On the next day Banta is again walking along the same street and the same man asks him to buy the clock. 'Give me a thousand rupees and I'll go get a ladder.'
Banta gives him the thousand and says, 'Oye, I am not a fool. This time, you wait and I'll go get a ladder.'