I'm pretty sure having your own electrified fence is illegal in most countries.

Anyway, I loved living in Kenya. But I really don't see why you insist on whitewashing the situation. It's a dangerous city, and only becoming more so- as the Airport fire perfectly demonstrates.

I'm living in Cairo, it was peaceful last week, now there are street wars happening just a few blocks from my apartment on a daily basis. As johan said, one can only rely on themselves, as this is Africa. Anything can happen.