Highlighter ink will not harm you as long as you don't have it inside your skin.
because it can put poison in your body
Tattoo ink would separate because it is water based so that it doesn't harm the body.
Ink can potentially harm plants due to its chemical components such as solvents and heavy metals. When exposed to ink, plants may experience stunted growth, leaf discoloration, or even die due to toxicity. It is not recommended to use ink around plants or in gardening practices.
Toxicity from a rubber stamp depends on the ink being used. Most all inks on today's market are considered nontoxic and would take over an ounce of ink being ingested to cause any harm.
A small amount won't harm you, but you might have an interestingly colored tongue for a while.
In reality, a person can still use expired ink cartridges in their printer. Doing so will not cause any harm to the machine or anything negative. Expired ink might start to lose its color eventually, but a person should not worry too much about that. In any case, a person can always buy new ink if they are not comfortable with using "old" ink.
Ink poisoning from being stabbed with a pen is possible but rare. The ink in pens is generally not toxic enough to cause severe harm. However, it's still important to clean and treat a wound caused by a pen to prevent infection.
It is unlikely to get ink poisoning from stabbing a pen into a vein, as the amount of ink released from a pen is typically minimal. However, it can cause serious harm or infection if a vein is punctured. It is important to seek medical attention if this happens.
I'm sure it does some harm but most likely very minimal considering millions and millions of people have them.
You passed a dyed-black cat? Ink may stain clothing.
Voting ink is designed to be difficult to remove and typically fades over time. It is not recommended to attempt to remove it yourself as it may require harsh chemicals that can harm your skin. If you have concerns about the ink, you should consult with a medical professional for guidance on how to safely remove it.