The sages of the Talmud continued to thrash out the topic and raised fears that two pieces of dough, each the half the volume of an olive, would be connected by a thread of dough, and thus together they would equal the volume of an olive and must be destroyed. The sages added a condition, that the thread of dough be strong enough that if one lifted the thread, it would drag the two pieces of dough in its wake. If the thread of dough would break, then there is no reason to destroy the two small pieces. One of the sages added a restriction to this ruling and stated that this rule only applies to a bowl, but in a house the pieces must be destroyed in all cases, lest someone sweep and gather the two half-volumes and make them the equivalent of the volume of a whole olive. The sages were also in doubt about a case in which one of the two small pieces was in the house and the other in the attic, one in the house and one on the patio, one in a house and one in a house entirely enclosed by the first house. Must the small pieces be destroyed or not? The Talmud does not reach a decision on these questions.
(Babylonian Talmud, Tractate Pesachim 45b)