As Easy As...

"What is that?"

"I was just trying to communicate with the aliens, like you said."

"What I said was that maybe we should try communicating with them using--"

"That's what I did! Just like you said! See?"

"No. I was talking about using mathematics, the universal language."

"What? You mean like numbers?"

"Any species this advanced must've discovered geometry."

"I don't understand."

"I meant pi! PI!"

"But... it's apple."

Behind the glass, the alien cautiously sniffed the air and then flicked its long, aardvark-like tongue across the crust.

*sigh* "I just hope there's nothing in there that's toxic to them."