I have seen it all. People with ripped battery wrappers and over half of it missing. They give me a silly little grin when I rewrap it for them in about 30 seconds. Education is the key because a lot of people have no clue. vaping takes work and not near as easy as lighting a smoke. Most people do not want to invest the time needed to learn safe vaping. CHEERS!
They probably think you are paranoid; the battery works fine in their vamo and they think you are just being silly.
Where the problem occurs is, for example, putting that battery in a bottom switched metal tube mech.