Is doing the piercing (procedure) dangerous?
Not if done by an expert piercer, with a strong emphasis on the word “expert”. With planning and steady hands this piercing can be performed with an acceptably minimum level of risk. It is also very important that the piercee (rather than the piercer) be an expert — They need to be able to be calm through any problems (difficulty in follow-through, etc.), and avoid gagging at all costs. Assuming that the piercee can remain still, a properly planned procedure bears little risk. However, if the piercee gags violently, it could be possible to drop the needle or the jewelry, or pierce the side of the throat. With adequate “dry runs” the chances of this can be reduced to a minimum.