OnTriggerEnter/Exit firing unexpectedly

At a loss. I have a sphere collider as trigger that is the parent object, under which are several scripts accessing it, rigidbody, controller, etc. On child objects there is a camera, and gameObject. There is only one collider. It double triggers when the game starts, when the object is moved by controller or animation, (but also when it is supposed to trigger). I have been controlling it through conditionals.

I have removed everything, still it triggers--one script prints to console even when turned off????

Should OnTriggerEnter/Exit be quite so "lively"? Anybody out there have any bizarre triggering events?