This isn’t really behavior because it doesn’t pass the “dead man’s test” but it is kinda funny.
I got a Redbull this morning and after a few sips I put it in the cup holder next to my old Redbull from yesterday. If you know me well enough you know I rarely ever finish my drinks. After a while I forgot which one was from today and which was from yesterday so I was going to sacrifice them both because there is no way I’m drinking old beverages (that behavior has been terribly punished). I gave my dad the warning that one of them was owed and told him to drink at his own risk. He immediately figured out which one was from yesterday. It had frozen solid from being left in the car!!!
Problem solved! I can now discriminate between new and old drinks 😉