He laughs without detecting any sarcasm.

Um...the fact he laughed would strongly suggest he DID in fact detect your sarcasm. People who didn't detect sarcasm wouldn't laugh because they wouldn't know a joke had been told.

You haters can diss it all you want- but this is a lesson you learn if you watch Big Bang Theory. When Shelton doesn't detect sarcasm he doesn't laugh & replies earnestly.

He laughs without detecting any sarcasm.

Um...the fact he laughed strongly suggests he DID in fact detect your sarcasm. People who didn't detect sarcasm wouldn't laugh because they wouldn't know a joke had been told.

You haters can diss it all you want- but this is a lesson you learn if you watch Big Bang Theory. When Shelton doesn't detect sarcasm he doesn't laugh & replies earnestly.