[BHS_STopping]

One other issue with yelling "ROBOT!" is that it's often difficult to tell if it's directed at you. When people keep shouting it, you look around and you don't see any robots coming your way most of the time. So eventually you start to ignore it. This completely defeats the purpose of alerting people around you, similar to crying "wolf" over and over again.

I still have yet to see anybody prove why saying "Excuse us" is any less effective than shouting "Robot!" Until someone can argue this, I think most of us here firmly stand where we are.