You know, if I don't know who the DP was, whether he was experienced in the field or not, but if I was him and I felt like I had nothing to lose, I would have done one of two things:
1) Goad Bale in physically hitting me, but do it in a way that doesn't obviously seem like I'm goading (like saying calmly, "Okay, just relax" or "Calm down" or "Chill out" or "No need to flip"). Then I can sue him to no end.
2) Listen to him tear me a new one and then, when they start filming, intentionally walk into the shot again. Would probably get canned, but, like I said if I had nothing to lose, it would totally be worth it.