IMPORTANT USEFUL TIP: when you take anything off your dog, be it a toy, your slippers, his food bowl etc. Be sure to trade the item for something in return. Ideally a small treat is good. This teaches your dog to feel confident that he doesn’t lose out each time you take something away. This will prevent guarding issues in the future.
Guarding issues can lead to biting, so be fair, TRADE every time!!