It's important to note that your pups probably shouldn't be entrusted to do what Diller does with whole avocados — but it's probably fine to let them have a slice.
"As a board-certified veterinary specialist in emergency/critical care and toxicology, I get asked if avocados are poisonous to dogs or not. Don't spread the hype — avocado is not poisonous to dogs!" Dr. Justine Lee, a consultant for the ASPCA, told The Dodo. "While it is highly poisonous to certain species (e.g., birds, sheep, etc.), the persin within the avocado fruit doesn't pose a poisoning threat to dogs."
The real threat to dogs from avocados is actually the pit. Those are a serious choking hazard and, if ingested, could become lodged in a dog's stomach or intestines. Thankfully, Diller has never had a problem handling pits, and his owner is aware of the danger.
"I would never let a dog that I didn't know was a methodical eater have a whole avocado," Moser said. "I trust Diller because I know him. He's getting to be an old man dog nowadays, and we've never had any trouble with him even thinking about eating a pit."
So, according to Dr. Lee, yes — other dogs can enjoy the fruits of Diller's delicious labor in moderation. (Too much can cause an upset stomach.)
"No need to take the guacamole bowl away from your dog entirely," Lee said. "When in doubt, contact the ASPCA Animal Poison Control Center for lifesaving advice!"