Just to make sure in the US anyway, if they ever put in an automatic 18% -- then either we put in a blank line or specifically put in Zero and make it big on purpose! And we do it with lines on each side of the zero, as I WANT THEM TO KNOW that I am not giving a dime of additional tip on top of their automatic!

May even start putting that on the receipt that zero is included because you did the automatic and you did not get more because of that.