23 A.2d 375 DONAT DEMERS v. EDMUND C. BECKER, doing business as MANCHESTER YARN MILLS. No. 3284.Supreme Court of New Hampshire Hillsborough. Decided December 2, 1941. Under P. L., c. 328, s. 13 the defendant has the burden of proving contributory negligence; and in the absence of evidence, the mere possibility which exists in every […]