Our greatest enemy…

Bard: I cast Polymorph on the door! Ha, take that!

DM: …the door isn’t a creature…

Bard: ………oh. Oh, yeah, you’re right.

Cleric: Fine, I use Shatter on the door!

DM: THE DOOR. ISN’T. A CREATURE.

Cleric: But- ……oh. Oh, yeah, you’re right…