Trademark

In all the signals the aliens sent us, there was never a harsh word or a profanity uttered.
Completely friendly.
It wasn’t until their delegation landed and their people walked around did we realize it was going to be an issue.
You see, in their language, many corporation names and trademarked brands were the most vile things imaginable.
“Coke” was a revolting sexual act.
“Disney” was scatological in nature.
“Ford” was akin to genocide.
And so on.
So, eventually, they gave up on our planet and went on to the next one.
While we drank our Cokes and waved goodbye.