Ditto what everyone else has said. Hard candies dissolve. Remember, your stomach is filled with hydrochloric acid!
I've even eaten raw veggies without chewing very well (sometimes I wolf things down without thinking) and have had no problems. When I've had partial obstructions, it was with no rhyme or reason compared to what I have eaten, but just due to a twist or kink in my gut that resolves as fast as it happens.
I know we'd like to think we have more control over those things, but we don't.
But, still, don't try to test it by swallowing marbles or coins, OK?
Jan