Insubordination is an automatic CA.
When I first came onboard I had some TMS who said they don't do certain things - work downstairs, throw the truck, cardboard, bowl, pull/backstock the freezer or work PFresh.
First I did all of the above several times. SEVERAL TIMES!!! Then I had a huddle and flat out read core roles of ETL, TL, and Flow TM ( all overnight were considered Flow TMs). Then I ripped them up.
I level set my expectations and explained that we all have the same goal - unload the truck, stock the floor, backstock, clean our mess, and go the F home. Yes we cussed overnight. I explained we are a team and we must fill in when needed.
Some @ssholes asked if the women, especially the 4ft 80lb 60 year old had to throw the truck too. If not then they (20 year old, strong and healthy) aren't doing it. I said you personally tell her to throw the truck then explain to the STL why you feel an old B should do it and you can't.
Insubordination was a quick way to term. I also used shitty tasks as punishment for TMs saying they cant do something. Say no and you'll find yourself promoted to Guest in no time.