Yelling "Robot" when pushing robot carts?

My team is from the PNW, where everyone yells “robot” when we’re pushing robot carts to warn around corners and in large crowds. At Worlds today, though, I had someone tell me not to say it. They didn’t explain any more, and I was wondering if there’s some controversy around it??
For me, warning people about the incoming 120+ lb robot and cart has always been around safety and courtesy, but I don’t want to be rude. Is there some reason we shouldn’t be yelling robot?

See this discussion: Please stop shouting "Robot!" in the pits!

Have fun.

I’ll close this topic.