Jewish grandson asked his Jewish grandpa to buy him a chocolate. So next time when grandpa visited his grandson, the latter asked:
— Grandpa, where is my chocolate?
Grandpa thought for a second and answered:
— Sorry grandson, there were no chocolates in the shop, only lollipops.
Next time the situation repeated. Finally, when grandpa once again answered that there were only lollipops in the shop, grandson said:
— Ok. Buy me a lollipop then.
Grandpa thought for a second and said:
— Remember, grandson, while your grandpa is still alive, you will eat only chocolates.