I was in the drive through for about 11 minutes which I though was unusual for arbys. I paid with a 20 dollar bill and gave him .20 cents. Instead of giving me my change the guy hands me my food and drink all at once (thought that was super weird). I almost dropped everything. Then asked if I wanted Arby's sauce, never giving me my change. Since I knew I was running late now for my appointment I didn't think about it until later that evening when I realized I should have had the exact change to pay for my nails. I counted my money when I got home and realized I was short $11. I think he did it on purpose, saw that I was distracted and in a hurry and took advantage. I called them right away and actually spoke to the guy I dealt with. Since the restaurant was no where near my house I asked if they could mail me a check. He said he would ask his manager and call me back. Never called back. Lesson learned to pay attention. Posting this so others will see and pay attention as well. I find it very hard to believe that a fast food place would do all these other things before giving the change back to the guest. Fishy if you ask me.