Although there is no record of the evidence presented to the District Court (Martin, S.J.), the facts appear to be as follows: The plaintiff Dow became a tenant of the defendant Carter on or about April 10, 1980, and gave a security deposit of $150. After falling in arrears, the plaintiff paid $300 to cover his rent through May 22, 1980. According to the plaintiffs amended writ, he moved out of *396the premises on May 18, 1980, and, on July 17, 1980, he sued the defendant for double the amount of the security deposit ($300).