I had a customer wait on me until I was done with lunch at a restaurant before.
He said it would be rude to interrupt me while I was eating.
I had a disabled veteran show up at the restaurant I was taking my lunch at before. He badly needed the NDA signature required meds that I had tried to deliver to his house earlier that morning. I recognized his car so I got up, went out to the truck, grabbed his package, and let him sign for it. I then resumed taking my lunch break and simply added 2 minutes on to the end of it to make up for the time I spent on the delivery.
I felt it would be rude to make him park and unload his wheelchair and come inside just to see if I was the driver who had his package. And it would be even
more rude to tell him "sorry, you cant have your meds for another 47 minutes, I'm on my lunch break." In addition to being wrong, that is also a good way to end up on a YouTube video.