T on a Deaf Coach

[Nevadaref]

When I was in DC I worked games at the Model HS and Gallaudet. I never had a problem as bad as yours, but I did get some clear disagreement with calls. I found that the deaf kids were very expressive and emotional.
What puzzled me at first was how they knew to stop on the whistle, if they couldn't hear it. I learned that many of them were not completely deaf and others could detect the vibrations from the blast.