Afghanistanis want their share plus they consider share of whole Pakistan is also their. Even if there's nothing available to eat, Pakistanis should feed them on their own flesh and blood.
Moreover to keep Afghanistanis safe, whole Pakistani army and civilian population should stand guard, surrounding all cities & villages of Afghanistan. All this must be done free of cost, and after all this they have right to abuse Pakistan and Pakistanis.
Actually, after taking all the benefits from Pakistan, that's what actually they are doing right now. This is Afghanistani mentality.
The only role of current so called Afghanistan govt is haramkhori. Full the pockets and full the banks, and no Afghanistani points finger at them, even after they are raping their boys.
If Pakistan govt would have put them strictly in camps and then pushed them back right after Soviet-Afghan war, situation would be much different. These are the people, who after enjoying favor, don't even remember your favor. Zia ul Haq should have known this from Bhutto and Ayub Khan. But every Pakistani leader wants new experiments.