That you also do not tip. Also don't forget how people desire to have those workers not merely stand behind a window but come outside despite the rain or searing heat.

After all, as John 13:14-15 says

If I then, your Lord and Teacher, have washed your feet, you also ought to ~~wash one another's feet~~ let them eat cake or whatever. For I have given you an example, that you also should do as I have done to you.