Logical Ciphers - Bet

Logic:  Hey Cipher, What room can nobody enter??

Cipher:  I don't know, what room can nobody enter??

Logic: A MUSHROOM!!!!

Cipher:  AHAHAHAHAHAHAAAA  That's really stupid!

Logic:  It's not stupid, you're stupid!!

Cipher:  I'm not stupid YOU'RE stupid!!

It just went downhill from there

- Bet