No offense but I think this is something you should write yourself wit your own point of veiw. I hate being that stubborn person who doesn't give you the answer but i think you should.
Answer:
Verb
Explanation:
Hiccups is a verb because it is a action/something you do,
It made the production of newspaper faster and easier.
It could be both, maybe they hurt themselves because they want to call some attention or it could also be their way to feel better with themselves
