GRS asks “Is It Unethical to Work a Second Job?".
Simple answer: no.
Simply put, if you are willing and able to then working a second job, regardless of the environment, is not unethical. I’ll even go so far as to say that under certain circumstances it is unethical not to pickup a second job.
The circumstance I’m thinking about is being deeply in debt. In the current environment the last thing you want to be toting around is a bunch of extra debt. Actually, any debt in any environment isn’t a good thing, but if you are at all concerned about your main gig disappearing then getting out from under all the debt you can and having money socked away to bridge you over to a new gig is the right thing to do. So go pickup a second job if you have the time.