When the sonic employee brought out my shake and onion rings the smell was just overwhelming. I so almost got sick. I knew it couldn't be my Oreo shake so I opened the onion rings and yep they were the culprit! I assumed their grease was old :/ I almost sent them back and then I thought well heck if I asked for anything else friend it would smell like this as well :/ when I got closer to a trash can (I actually had the bag hanging out my door bc the odor was just way too much) I couldn't wait to dump them. I was disappointed, that's for sure :/