The Seventh Fridge
A man, making aliyah, is taking advantage of the customary lifting of import tax for returning Jews by bringing in a total of seven fridges. Naturally, the Israeli clerk is somewhat surprised and wants to know why anybody would need so many.
"Well, let's see," explains the young man. "I have a fridge for meat, a fridge for dairy, and a fridge for parve."
"O-kay," responds the clerk, "but you have seven fridges."
"Oh, well when Pesakh comes around, I need a fridge for meat, a fridge for dairy, and a fridge for parve."
"That's all very well," notes the clerk, "but what is the seventh fridge for?"
"Well," answers the young man. "Sometimes I eat treif..."