Thats a fact that Pakistan will not shoot any drone.. reason being.. Politicians are being heavily paid.. btw.. u said.. PAF knows what will happen.. and apparently you know it too.. please enlighten us.. What will happen? Shall i give u a hint??.. US will run towards UN as someone else did in the past to pull PA back..
sounds familiar?
I will tell you what will happen once you shoot down a drone:
1. USAF/CIA will send another drone escorted by two F-15's. This drone will take care of the targets that the original drone was supposed to destry but couldn't. The F-15's will bomb the hell out of your airbase from where the attack priginated.
2. NATO gunships will send a few of your rangers/whatever on the AfPak boorder to heaven.
3. The K-L bill will be scrapped. All other forms of civil/military aid to Pakistan will be suspended.
4. Lockheed Martin will be prohibited from supplying any spares for your F-16's in the future. Other US based defense equipment manufacturers will also be ordered the same.
5. A few US senators, sponsored by the Indian lobby, will bring a new bill branding Pakistan a terrorist state and asking for imposing sanctions upon Pakistan.
6. The US assets inside Pakistan will openly start targetting ISI assets. Imagine a few more Raymond Davis'.
7. A lot of other economic shyt will follow.
8. Your people will eat grass for a few more years to come.
And this is supposing you don't reply back to the US. If you do, then you can imagine what the next steps will be.