You know your puppy learned the 'sit' command when you say to your husband "You should sit down and relax, you've been on your feet all day long at work"
...and the puppy stops mid-play and sits.

(happened last night) She then waited on her tushy for me to say "YES! Good girl,Bella!" and then she was back to playing again. Made us laugh like there was no tomorrow, because I wasn't even looking at her or talking to her (husband is the one that pointed at her and said 'omg she sat, look'.)
Anyone else have a "You know your puppy learned ___ when..." stories?