First the food really sucks.
It was me and my mom for dinner, bill was $58 after tax.
Here is the issue., The server enter the amount on the machine, hand over to me ask me to TAP.
I almost did it , but right before I tap, I notice the screen show total payment is $72.5. Look carefully, she enter 25% tip FOR ME.
I press cancel , told her the amount is wrong ask her to enter it again, didn't mention the tip.
She quickly enter the amount again, ask me to give her my card to tap, I ask her give me the machine. Sure enough, it show 25% tip.
I end up drop $60 cash and left.