PJ with a sting

One Cheenti (ant) knocks the door of a house. House owner opens the door.

"I want a place to stay", said the Cheenti ...

"I have a vacant room which you can occupy for free of cost", said the owner. Cheenti went inside and occupied that vacant room.

After some days, the Cheenti brought in another Cheenti and requested the owner "Can you please allow this Cheenti to stay along with me".

"Oh sure, you can do so without paying any rent" said the owner.

After some days the Cheenti brought one more Cheenti and requested the owner to allow that Cheenti to stay with it. Owner agreed to it without asking for any rent.

This continues and Cheenti brings in one more Cheenti and owner agrees for it. On one fine day, the Cheenti brought in the tenth Cheenti and requested the owner to allow that tenth Cheenti also to stay with it.

The owner said "Ok, you all can stay here but you need to pay rent".

Now the question is : Why did the owner ask for rent when the tenth Cheenti came in?

Scroll down for the answer:

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Com'on, don't give up... just think, why Rent now?

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...Because they are now Tenants (Ten Ants)!!