This morning – Isaac (ALMOST 5 yrs old) was walking by Lexi’s xpen, which she would jump up on. Isaac is quite careful around dogs, and as tiny as she is – he’s still uncomfortable with her jumping against the pen as he passes.
Isaac told her: “Sit. Lexi, Sit”.
I told Isaac: “Oh Isaac, she doesn’t know that yet. She’s a baby and doesn’t know anything yet – we have to teach her”.
Isaac paused and then told her: “Wag your tail. Goooood girrrrlll”.
The hilarious part is that he wasn’t trying to be funny or make a joke! I guess he just decided this was something she could probably do. And when you say pretty much anything to a Golden – the tail does wag 
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Oh this is the BEST!! Issac the natural born dog trainer! He completely got that 'sit' was too hard, so go for something easier to get them a reward! Awesome!!