The average Brussels Griffon, while curious and intelligent, is not a fan of loud noises. Loud noises can be very distressing to this dog; he may feel intimidated by shouting or raucousness, and this can lead him to fear for his safety. Any dog that fears for himself will react harshly, no matter how well he has been trained. The Brussels Griffon will also react to what he interprets as threatening noises with defensive behaviors, and these behaviors can be defensive biting. Of course, a dog ...