Me and my friend flew with BA. Intense questioning like I've never had before or since when leaving the country, 'did you go to Arab areas, did you speak to Arabs?' etc. 'Yes and yes' which attracted further scrutiny.
The old friend we were staying with worked for a prestigious NGO and had diplomatic status. He stayed with us up to the point of departure, which he'd learned to do with visitors as the last friend who'd come over had been strip-searched!
What I don't understand is why they scrutinise you on exit rather than entry. With the latter we just got waved through despite both having Egyptian visas in our passports.