If you were in the PX/BX and you saw high ranking NCO/Officer in uniform put an unpaid item in their pocket, would you say anything?

I'm an MP so I am no stranger to shop lifting in the PX/BX in reference to processing shop lifters from teens, spouses, to even NCOs and officers. My question to you, if you were in the PX/BX and you saw a service member in a military uniform who was of a high pay grade (E7/O5 and higher) and you were 100% sure and witnessed said individual put an unpaid item into their pocket, would you say anything and what would you say? Would you be in so much disbelief due to their rank they would be risking it all over shoplifting that you would ignore it and move on? Without breaking OPSEC, I will say the crime prevention department watches people like hawks from their office so if someone is doing this, they are probably already watching. What would I say? I will make it simple, "You should put that back" and then walk away. I would also do this for anyone whether or not they were wearing a military uniform.