I didn't realize people tipped at Sonic until I worked there my senior year of high school. I wore skates, so I got tips. It was fun & made me stand out because most don't do skates anymore. I got more (unintentionally) from guys who tried to get my number.
I don't know who is from AR but we would give out Wild River Country coupons near the summer. I got the biggest tip from the General Manager of Wild River Country because I gave him a coupon.