I put the stuff I don’t want to eat from my takeout in my friends yard and put his cat’s collar on it

My friend always orders me food and has them tell me it’s for his brother but he doesn’t have a brother. Then he tells me to keep any leftover food for myself but he doesn’t want me touching the food that he has split up into separate portions for himself. That would be fine but he eats a split of a big mac in the car and then throws the rest of the food out the window as we’re still driving. Then he tries to eat as much of the food as possible while telling me over and over again that I’m not allowed to eat it. If I try to eat any he says that it’s for his “brother” and I need to drive him home right away. I started picking out the food that I don’t like and putting it back in the delivery bag and then I throw it into his yard. I don’t want to eat a burger with no pickles and I’m obviously not allowed to throw them out. I have been putting his cat’s collar on the burgers and putting them on his front porch. I thought it was hilarious at first but I think his neighbors might have started to notice.