Requirement for +a+c: good sense of humor

The sense of humor is part of the ability to move to the place you want to be, your vision, you hope.
If you keep in the place where you are, you are not moving to the place you want to be.
And is an ability required to be an agent of change, that must be tested and developed as a requirement, specially for those who have to live in the darkest areas of human existence to change it.

The sense of humor, contacts too with your ego child who is more empathetic, and other benefits, you can search on internet :)