Clever, but if your job is to stand at a counter where I walk up and then take my food to my seat plus get my own drink & refills you're not getting a damned tip.
Tips are for people that make a server's wage (well below min. wage) and provide service.
Fairly certain that the light side vs. dark side Force tip jar is at Amy's on 6th street in Austin, TX. I was just there this past weekend! Heh!!
Ice cream disher got a tip for the top notch service & entertainment he provided.
The dolts who stand almost completely still at Qdoba, Chipotle, etc can enjoy their base wage. And I'm not rude to any food prep employee.
If you want a tip, get a tippable job. If you stand behind a counter and want tips, you're just a beggar. What did you do to deserve your tip? not throw a temper tantrum when someone called it large instead of venti? Not legit.
Sorry Frank, I'm pushing 50, have worked a "counter" and subscribe to the motto: Come to my table and you may earn a tip. If I have to worry about you spitting in my food, you need a different job and therapy. You young punks don't understand what real work is. Go to college so you can be the tipper, not the tipee. Jesus.