Has anyone ever gotten a route that had them deliver packages back to the warehouse you picked up from?

I’ve been doing this awhile and this is a first time for me. I had a 3.5hr route with 43 packages and 30 stops. The last stop was back at the warehouse for 6 Lg packages. Not a return, but a delivery… idk it was strange. I literally just took 6 boxes for a ride this morning lol