Timely Comics isn't in the public domain. Their characters and stories have ongoing copyright protection. This means you can't use them freely without permission.
I'm not sure who Victor Marx specifically is in this story without more details. He could be an ordinary person with an extraordinary story, or he might be someone well - known in a particular area.
A pregnant woman brought her toddler to an ob gyn appointment. The toddler thought the doctor's stethoscope was a toy snake and started chasing the doctor around the room with it. The doctor played along and it turned into a really funny and light - hearted moment. Another story is that a very pregnant woman tried to get into a really small car for her appointment. She had such a hard time that it looked like she was doing a comical circus act. The ob gyn staff had to help her out, and they all had a good laugh about it later.
Timely Comics was moderately popular. It had a decent collection and attracted a fair number of customers, but it wasn't the most renowned in the area.
Well, sometimes new dads - to - be get really confused in the ob gyn office. One time a guy thought the waiting room for pregnant women was a regular doctor's waiting room and started complaining about all the pregnancy magazines. He didn't realize until the nurse told him. It was quite funny.
I'm not sure specifically what 'Timely Errors' refers to in a Harry Potter fanfic without more context. It could be the name of a unique plot device, like a spell that goes wrong at just the right or wrong time. Maybe it's about mistakes characters make that end up having significant consequences in a timely manner within the story.