Erratic Hammering

You begin to hammer endlessly, creating an erratic noise that anybody within 1,000 ft can hear. This noise makes casting a spell as a ritual impossible, and prevents victims from falling asleep. If you continue the erratic hammering for the entire duration of the spell, you must make a DC10 Con check. On a success, nothing happens. On a failure, you spontaneously create one piece of medium sized wooden furniture of your choice, and you suffer 1 level of exhaustion.