Halbman, a minor, purchased a used car from Lemke for $11,250. Under the terms of the contract, Halbman would pay $1,000 down and the balance in $125 weekly installments. Upon making the down payment, Halbman received possession of the car, but Lemke retained the title until the balance was paid. After Halbman had made his first four payments, a connecting rod in the car’s engine broke. Lemke denied responsibility, but offered to help Halbman repair it if Halbman would provide the parts. Halbman, however, placed the car in a garage where the repairs cost $637.40. Halbman never paid the repair bill.
 
Hoping to avoid any liability for the vehicle, Lemke transferred title to Halbman even though Halbman never paid the balance owed. Halbman returned the title with a letter disaffirming the contract and demanded return of the money paid. Lemke refused. Because the repair bill remained unpaid, the garage removed the car’s engine and transmission and towed the body to Halbman’s father’s house. Vandalism during the period of storage rendered the car unsalvageable. Several times Halbman requested Lemke to remove the car. Lemke refused. Halbman sued Lemke for the return of his consideration, and Lemke countersued for the amount still owed on the contract. Decision?