5. Will the eardrums be poked out with earplugs?

That is unlikely for two masons. First, the average ear canal is about 1 inch long. The typical ear plug is between 1/2 to 3/4 of an inch long, 50 even if you insert the entire earplug, it would still not touch the eardrum. Secondly, the path from the opening of the ear canal to the eardrum is not straight. In fact, it is quite irregular This prevents you from poking objects into the eardrum.