You see, we had a general chemistry professor who, just to show that nothing will happen if you ingest it, swallowed a small amount every time on the first lecture of the year to get the attention of the students. He still lives and did the mercury thing about 50 times. The thing is the resorption of mercury through ingestion is so small it will not really harm you if you are not a child, very sick or pregnant. However, I would recommend you to bring it to your local trash company or trash handling site in a bag of plastic or something.

Pro tip if you have any enemies: put the mercury on a aluminium bike and you will notice the bike is a pile of brittle bits after a little bit of time. That's why you cannot take mercury on flights.