just a few words of advice.
first, do not be fooled by their passive and seemingly oblivious exterior. these are smart dogs, with relatively advanced language capacities and the intrinsic ability to form a defined mens rea. she will come to understand far more of what you say then you might think. further, expected criminal behaviour is most likely to be related to the intentional theft of food. do not think she doesn't understand, either. she understands. she will no doubt conspire to attain food if it is within reach, and in complex ways that demonstrate foresight and planning. the best strategy is avoidance. dogs don't really have a mechanism to tell them they're full, so sufficient feeding will not resolve conspiracies around the theft of food. be forewarned.
second, goldens have a tendency to consume their own feces. this is not dependent on diet; there is again no way to really prevent this besides constant observation and quick pickup.
third, they tend to have high cancer rates. they're also very stoic, meaning they can hide large amounts of pain. because they will not tell you when they're sore, you might now know until it's metastasized and is too late. so, you should be proactive about that.
besides that, i will state again that they are the best dogs.