It is a well known fact that those persons who are, in fact, mad (I.e. Insane), will without exception (almost without exception), deny their madness. Therefore, if someone was to say that they were mad, they are in all likelihood an sane as a sane thing.
Hence, it can be stated that all of the members of Gopsi are PERFECTLY SANE.
It has often been observed, and occasionally stated that the actions of Gopsi are mad 1. Of course, this is completely untrue. Of Course.

1. Other words used to describe Gopsi actions have been: Sad, Stupid, Silly, Pointless and Asparagus.