Is there such thing as a viscous Golden Retriever?
Well ... they are kinda thick.
Or did you happen to mean "vicious"?
No. The word "viscous" means thick or syrupy. Wouldn't apply to a dog. If you mean "vicious", probably so, as any dog can be made vicious by training or poor treatment or a combination of both.
“Is there such thing as a viscous Golden Retriever?”
The only thing mine would do it lick you to death. That would be after he rolled over for a tummy rub.
The most dangerous Golden Retrievers are the ones that force you to pet them till your arm falls off...