Clock Tower

Sardarji 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. Sardarji says "Yes".
"Give me a thousand rupees and I'll go get a ladder." The man took the thousand and disappeared. Having waited for several hours the Sardarji figured he was taken for a ride. On the next day the Sardarji 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."
The Sardarji gives him the thousand and says I am not a fool. This time, you wait and I'll go get a ladder."