I never understand why take out food places automatically ask for tips (when paying with card)... if you don't have seating- and you're not leaving the conforts of behind your counter why do you feel you deserve 15%?
I tip my coffee/ tea places always- by choice (into their tip jar)- why? Because they're pleasant- they smile, listen and add to the positivity in my day.
Bolt- you were rude, when I asked a question you totally disregarded it, and there just seems to be a cloud of gloominess behind the counter- so no- you do not deserve the 15percent and I consciously will hit "other" and choose 0. Because you are miserable and I do not believe in rewarding negative Behaivior.
Please leave my neighbourhood to make room for another shop that brings in more pleasant staff!!