Ah yes. Minsky matured at a very similar age. He sat and yowled at the window for a while, eventually managed to get out, promptly disappeared for a couple of days, and returned with as smug an expression as I have ever seen on the face of a cat.

Over here they won't neuter a cat until it's six months old, early developer or no. Fortunately Minsky seemed to be quite content with his precocious exertions until that point. :-)