Arab in his tent --- night very cold --- camel outside --- asks master to let him put his neck in --- then to put forelegs in --- then to come in altogether --- asks the Arab to leave the tent.
An Arab, one winter night, was sleeping in his tent. His camel was tied with a rope to gag outside. It was trembling all over with cold. It asked him to permit it to put its neck inside the tent. The Arab agreed. After a while. It requested him to permit it to put its forelegs inside the tent. The Arab did not object to that. A little later, it requested him to let it come in altogether. And its request was granted at once.
Now the tent was too small to accommodate the camel and its master. It therefore, pushed him out to sit there in comfort.
Moral: Give him an inch, and he will take an ell.