I watched in horror as an elderly lady shuffled up to the merest lip of a recessed curbstone, and full towards me. That horrid feeling that I could have dived i

I watched in horror as an elderly lady shuffled up to the merest lip of a recessed curbstone, and full towards me. That horrid feeling that I could have dived in to catch them, instead just transfixed. One of the reason why I posted this in the first place.