The gemara continues discussing under what circumstances outsiders can come into a town and sell there wares. \u00a0 Special dispensations are made for those who learn. \u00a0As a result, the rabbis unfairly questioned Rav Dimi when he came to town to sell and since he didn’t know the answer, they assumed he wasn’t a talmid chacham and he couldn’t sell his wares. \u00a0When he went to complain to Rav Yosef, Rav Yosef cursed those who did this and the rabbi who had questioned Rav Dimi died. \u00a0An interesting number of statements are brought by various rabbis who all assumed responsibility for his death (some connected to this particular incident and others not at all). \u00a0 The mishna discusses one who has a wall next to another’s wall and wants to build a wall, one needs to leave a distance of 4 cubits, and also if the wall has a window, one needs to distance his wall from the window by 4 amot (higher, lower or opposite). \u00a0the first case is quite confusing and two explanations are brought. \u00a0One of them, brought by Rava explains that the first wall was also 4 cubits away and it fell. \u00a0One needs to distance the new one 4 cubits away for that space is left for people to tread on the ground alongside the wall which will\u00a0strengthen the neighbor’s wall. \u00a0\u00a0Various questions are brought on this explanation of Rava – from the second part of the mishna and from another braita.<\/p>\n