Expired cans of food make a mess; I disapprove......
Hit properly, there really isn't anything left in the cans to leak out on the drive home.Well, I suppose you could you could throw the messy perforated food cans into a plastic garbage bag and toss it all into your trunk or the back of your truck and drive home with it only to have the the sharp edges of the bullet holes poke through the bag and leak the mess out...... Or, having forseen that, be tempted to just leave the mess and let wildlife injure their mouthparts on the sharp cans as they try to eat......
Nope, there's nothing good about shooting cans full of expired food.