This is a bit of a random post, but a Storm Whistle customer brought this article to my attention earlier today:
Has Your Senior Dog Started to Lose His Hearing?: Five Things to Do When Your Dog Starts Losing His Hearing
I never thought about how perilous the loss of this sense was to dogs. In the article, Ms. Miller discusses how older dogs should be carefully monitored, as interactions with busy streets, bicycles, and even other dogs can turn dangerous very quickly.
And (hooray!), Ms. Miller also mentions the Storm Whistle as a good tool for people wanting to communicate with their hard-of-hearing dogs.
Thanks, Whole Dog Journal!