(Mishnah): If a man was seized by Kordaikus (an evil spirit) and said 'write a Get to my wife', his words are void;

If one said 'write a Get to my wife', and he was seized by Kordaikus, and he retracted and said 'do not write 'a Get to my wife', his latter words are void;

If a man became unable to speak, and others asked him 'should we write a Get for your wife?' and he nodded his head, we test him three times. If he answers properly no and yes, we write and give the Get.

(Gemara): A sign of a lunatic is that he goes outside at night, stays overnight in a cemetery, tears his garment and loses what one gives to him.

(Rav Huna): This is only if all the signs are in him. If not, [can you say that he is a lunatic]?! One who goes out at night - perhaps he is worried or overheated [and goes out to alleviate this]! One who stays overnight in a cemetery - [perhaps he wants to Ru'ach ha'Tum'ah to cling to him, and he offers incense to demons! One who tears his garment and loses what one gives to him - perhaps he is obsessed with thoughts (and does pay attention to his actions)!

(R. Yochanan): It is even if one [sign] is in him.

(R. Avin): Presumably, R. Yochanan is correct - it is even if one is in him, other than losing what one gives to him, for even the ultimate lunatic does not lose what one gives to him. (Rather, that is Kordaikus.)

Kordaikus does not have any of all these [other Simanim. Therefore, any of the others proves that he is a lunatic. - GRA]