FedEx Refuses Shipment of Made-Up Stuff, Empty Cans

This guy’s lucky. If there were LEDs attached to his bottles he’d be in jail by now.

FedEx guy: Nope. You can’t ship these either.
Me: But… they’re empty! It’s just air. And… nitrogen? It’s, like, almost 80% of the atmosphere. There’s nothing dangerous about nitrogen, even if it were pure.
FedEx guy: They look too much like bomb-making materials.
Me [going into dumbfounded mode]: Bomb… Neon? What? Is there anything here I can legally ship? How about this bottle of tap water?

I hand him a bottle of Certainty (tagline, “For when it’s preferable to think you know more”), which looks like this:

FedEx guy: Nope. It still looks too suspicious, too much like bomb-making materials.
Me: But it’s “Certainty.” That’s not even a thing. I just made that up. [That’s not strictly true. It’s a scientific term/idea, and we sell it alongside bottles of “Uncertainty.” But it’s like having a bottle labeled “Friendship.”] FedEx guy: It’s just too suspicious.