Kyon-kun, Kyon-kun, I found something strange - S1.E18

Kyon is joined by Mikuru, Tsuruya and Yuki, who find a stone that Yuki breaks, releasing a spirit. Whilst trying to figure out how to dig his hole, Kyon is interrupted by Arakawa who "randomly" stops by, and Mori who creates a giant crater. Unable to explain the situation to Haruhi, Kyon takes all the credit.