AIO being super nervous because I drank coffee that I left unattended on a bench for two minutes

Me and my family went to the beach. My wife got a takeaway coffee. She left it on the bench next to me. I had to leave for a couple of minutes (literally). I completely forgot about the coffee. When I came back the coffee was where I left it. Also, there was not many people around. My wife came back and we finished the coffee together. Now, I’m freaking out as I don’t know who could’ve touched the coffee while I was away.