I personally have never seen that happen and I spent ALOT of time at the track! The main purpose of the anti-rollbar is to stop right rear squat at launch and keep the car flat and straight. I can't see there being that much force but then again, anything can happen in drag racing lol..
HOTMOPR's car needs one of those bad!! At least when it was N/A and spraying from what I seen in his avatar.:D His **** looked like it was about to flip over sideways:cheers:.