Q. A put a stone in front of his door which opens into the yard of the synagogue. The members of the community object to it, on the ground that it is a stumbling block and a nuisance. A. One is not permitted to put anything in the public domain, without permission from the proper authorities. Therefore, A must remove the stone from the public property, unless he had received permission [from the community] to put it there. SOURCES: Pr. 235.