I have a lot of earwax build-up, so whenever I wear earplugs they stick out stupidly. But this thread has scared me to death, so I think I'll keep on using them.
I can pop them in and you can't even see them when you're looking at me head-on. You _have_ to use two hands to put them in -- pulling up on the ear is essential. The roll-down information is helpful, too.
Now, I can yawn and move my jaw every which way and the seal is never broken. Actually changed my life, since I wear earplugs for most of the night and a lot of the day.