Take the opportunity to acquire skills for the inevitable firing that's coming later.
There was a story like that on Tales From Tech Support (buddy automated all his work while not making himself essential to support the automation) and when the guy got caught and had to find another job, it had been so long since he had actually worked that he had forgotten all about programming.
There might be an issue with some contract clause about the company you work for owning anything you create while at work so if you're working two jobs at once it can create quite a mess
Right? Like at lease pick up some hobbies or something. I can't imagine having all that free time and just sitting there letting my brain and body fester.