As Koteburo mentions it's not a sure bet that your cat will develop HCM, when you take Dexter in for his regular vet visits have the vet take a look at his teeth to make sure there is no tarter build up or inflammation of the gums as this can lead to heart disease in anyone. Your vet can also listen to his heart to hear if there are any abnormal sounds that need investigating.
Avoid biting when a simple growl will do
The Spirit Lives As Long As Someone Who Lives Remembers You - Navaho Saying
Vindication ~ For all those pets who became sick or lost their lives from tainted pet food