Definitely not. Comic porn is often against moral and legal standards and can have negative impacts on society, especially on young people. So, it's not okay for public viewing at all.
Yes, the 'A Princess of Mars' comic is in the public domain. It's accessible for anyone to enjoy, republish, or create derivative works based on it. But always be cautious and follow ethical and legal guidelines when doing so.
To determine if Lawrence Hoffman's comic art is in the public domain, you need to look into its creation date and the applicable copyright laws. Usually, if it was created a long time ago and copyright has expired, it might be in the public domain, but this isn't always straightforward.
Well, in comics, the portrayal of people using public restrooms can be quite diverse. Some might fumble with the locks, while others could be seen washing their hands thoroughly. It all depends on the story and the artist's imagination.