Cannot use parentheses when calling a Sub

Every now and then someone will ask me what the VBScript error message "Cannot use parentheses when calling a Sub" means. I always smile when I hear that question. I tell people that the error means that you CANNOT use PARENTHESES when CALLING a SUB -- which word didn't you understand?

https://docs.microsoft.com/en-us/archive/blogs/ericlippert/what-do-you-mean-cannot-use-parentheses