Is $15 would you tip $3? That's 20%. $3 seems like a really low tip BUT ITS ONLY A 15 DOLLAR BILL AND WHY SHOULD I FEEL OBLIGATED TO PAY MORE FOR SOMEONE FILLING UP MY DRINK ONE TIME AND ASKING IF THE FOOD IS OKAY?
Usually if you're bill is $15 then you weren't there a while. I have no problem tipping 2-3 dollars if the bill the a small bill, usually they have multiple tables.
Timster There's been times when my bill would be like 11 dollars and some odd cents, id be like welp my 15% tip is a little over a 1.50 which feels soooo bad but if youre bill is that low then usually youre not there for over 30 minutes.