Yeah, they are unique critters alright. I don't know of a way to safely handle them with your hands. Tail and hook is one way, but they are brutally quick lashing around. As Meretseger pointed out, they can bite you from the side by rotating a fang out of the side of their mouth and because of the unique morphology of their heads, the fang will actually extend past the back of their head. They have short heads and long fangs (which look enormous in their mouth), a bad combination for handlers. Many people have found this out the hard way (including Mark O'Shea, as I recall) by trying to pick them up in the usual fashion by gripping the neck behind the head.
There are 16 recognized species, mostly exclusively African, but a couple are found on the Arabian Peninsula as well. Some species have been attributed with a 25 percent fatality rate in untreated bites and Stilettos are credited with being responsible for more than half of all serious envenomations in parts of their range in Africa....unusual for a burrowing snake. The thing about Stilettos is that they frequently come out at night prowling and are encountered on roads and paths where they are then stepped on by barefoot people, a guaranteed bite.