Something I just noticed

Mackinna has a vivid imagination and has an entire world that the rest of us don't see.  She has very lengthy conversations with children- sometimes as their mom, other times their teacher.  She also seems to talk to friends and co-workers pretty regularly.  One thing all the conversations seem to have in common is that Mackinna repeats herself very frequently and gets louder and louder each time.  As I was listening to her do this this morning, it occurred to me that everyone in Mackinna must be very hard of hearing?