What is a command you accidentally taught your pet?
My goldendoodle puppy doesn't ever want to come back inside. I told my beagle "go get your sister" as I tried rounding up the puppy. Now when I say "go get your sister" the beagle runs to the puppy and baits her into chasing him into the house.
Every time he farted it was awful so we'd shoo him out of the room. Eventually, he'd immediately walk out of the room right AFTER he farted.
We'd end the day watching TV in the living room. Eventually he learned that the click of the TV meant it was time to go to bed, so any time the TV got turned off, he'd get up and go into his bed in our bedroom.