Food safety
Can dogs eat avocado?
Yes, but be careful
The flesh is much less of a problem for dogs than for birds, but it's high in fat and the stone is a real blockage risk. Easier to just skip.
Being honest about this
Dogs differ, and amount matters — a crumb of something rich is not the same as half a packet. Treats of any kind should stay under a tenth of what your dog eats in a day. If you're unsure, your vet would far rather take the call.