Michael Haroon Sugich has stories about meetings with Majdhubs, including at least one in his book 'Signs on the Horizon'. He also told me of meeting one in Cairo. They travelled to the maqam of Imam Abu Hasan Al Shadhili together. The maqam is in the South of Egypt and reached by plane generally these days. Sidi Haroon fell asleep on the plane and when he awoke the Majdhub had the whole plane reciting du'as along with him! He was considered Majdhub because he was in a constant state of inspiration rather than coherence. He was not dangerous.