-Hours
-Driving
(These two are common for any ABA agency. Some of your clients may live far away with dilapidated home conditions and in sketchy neighborhoods; be prepared for that in case you have those assignments. And there's no guarantee of full-time hours so I wouldn't recommend it to anyone looking for that; however, if you just need 5-20 extra hours per week, this place is perfect!)
-Changes (comes with nonprofit territory really; supervisors, management, staff, clients are always changing)