The waiter must have been miffed that he had to calculate separate checks and then a coupon on top of that

! When we go to dinner there, we have one check, yet there are 4 people in our family. We always get 4 mints -- sometimes extra.
I do agree though that OG is getting cheap. Their portion sizes are are pretty small. One time when the waiter asked if we'd like a dipping sauce with our breadsticks? I said, "Sure." He gave us a couple of choices, so we chose alfredo sauce. It came in a tiny dish that had enough sauce in it for about 6 or 7 dips of bread. Then it was gone.
When we got the bill, we were charged $2.95 for that teeny tiny dish of sauce!

I thought it was complimentary! Never again will I fall for that!
Oh, and OG is notorious for charging full price for the drinks when your kids order a kids meal, but the waiter brings it in a regular glass. So watch your bills! I have to call them on it almost every time on DS's kids meal and get them to change the bill!!!
And one other thing --
DS likes a meatball with his spaghetti. The kid's serving is absolutely tiny and does not come with a meatball. He asked for a meatball in it, and we had to pay $2.50 or some ridiculous amount for a darn meatball!!!