Much like in sword swallowing, this can take a lot of practice. The sneeze reflex is one of your body's defense mechanisms against bacteria and viruses-- when you sneeze, you forcibly expel particles that could make you sick. In other words, a human blockhead ignores one of the tools the body uses to prevent illness.
The Amendment Process. There are essentially two ways spelled out in the Constitution for how to propose an amendment. One has never been used. The first method is for a bill to pass both houses of the legislature, by a two-thirds majority in each. Once the bill has passed both houses, it goes on to the states. This is the route taken by all current amendments.
The amendment process is very difficult and time consuming: A proposed amendment must be passed by two-thirds of both houses of Congress, then ratified by the legislatures of three-fourths of the states. The ERA Amendment did not pass the necessary majority of state legislatures in the 1980s. Another option to start the amendment process is that two-thirds of the state legislatures could ask Congress to call a Constitutional Convention. A new Constitutional Convention has never happened, but the idea has its backers. A retired federal judge, Malcolm R. Wilkey, called a few years ago for a new convention.