Correct! When you give extra to a business owner it is not called a tip - it is called a bonus!
I have a restaurant owner in my neighborhood that opens by himself early morning and always stand ready to serve me breakfast. I insist on tipping...I mean...bonusing him! ?
I am afraid some rules of etiquette was set, and is stuck, in the era when ladies wore corsets. I mean, just read Jane Austen!! ?