bochur24:
“I believe it absolutely is a chossid shoiteh. There is risk of serious injury here”
Risk of injury is not the same as certain death. And besides,unless she’s at the top of a flight of stairs the chance of a serious injury is not to high.
“and there would be no chibah involved”
Now there’s the issue. I’ve never looked into the particulars of shomer negiah, and I’m honestly not sure exactly what the halachos of non-chibah touching are.