I was also playing with some of my mother's suggestions (RN for 25 years before she retired). 1) regs weren't what they are today, it might have been easier to just say 'no thanks' in the '70's than it is now. 2) if you had fever following a DTP, you were scratched off the list for future ones, 3) though it's questionable practice, would a doctor let Martha take home a dose to 'give' Clark if she presented him as needle phobic... especially in an insular community like Smallville... I will also fully admit to never having read the comics, heh.
