Strollers on an escalator. Yay or nay? I see parents do it all the time - it freaks me out but am I being over paranoid?

I agree with Nooraini. Try to avoid strollers on escalators whenever possible. If you have the option of a lift, always should choose that. Infact, I would say avoid strollers in any congested or crowded place where there are chances of a stampede.