FUNNY YOU ASK, IVE NEVER HAD ANY PROBLEMS WITH DEAFNESS UNTIL THIS LAST LITTER, I OUT BRED MY DOG TO A GOULDY BRED BITCH, GUESS WHAT SHE THREW A DEAF DOG ASHAME HE IS A CRACKER, BUT NO GOOD TO ME IF IT CANT HEAR OWT, I WONDER IF THE DOG WILL BE MUTE. ANYONE WORKED A DEAF DOG. ( TO GOUND )