In vorbeigehen or vorbeireden, a patient will answer a question in such a way that one can tell the patient understood the question, although the answer itself may be very obviously wrong. For example "how many legs does a dog have?" - "six". This condition occurs in Ganser syndrome and has been observed in prisoners awaiting trial. Vorbeigehen (giving approximate answers) was the original term used by Ganser but Vorbeireden (talking past the point) is the term generally in use (Goldin 1955). This behaviour is also seen in people trying to feign psychiatric disorders (hence association with prisioners)