For those unfamiliar, boomslang venom is medically interesting (which is always a warning sign, lol). It has a reputation for killing a person days after they are envenomated, and after primary symptoms abate.
This is because it contains some pretty serious anticoagulants. One weak spot in any blood vessel (which the venom encourages), and boom--aneurysm.
Definitely a venom to be cautious and aware of.
My advice for anyone wanting to branch to venomous would be that they should error on the side of caution. Get something like an Amazon tree boa first, and see if you can work without without being bitten. Don't take excessive liberties with even mildly venomous snakes (hognose not included). Always remember that developing an allergy is a significant risk with venoms.
(My own future plans include Oxybelis fulgidis, but I need the space for a proper setup, and a good locking cage--I want my kids to be a bit older, too).