This is a common problem and I have seen the crank brake the dip stick
tip off first hand... I would remove about a 1/4'' off of it before you end up with a piece of metal in your oil pan.
Memike is right.
I had a /6 Dart several years ago that the dipstick end broke off a couple of times. I bent the new one away from the crank and fed it into the tube carefully every time i checked the oil so that the bend was away from the crank.