Freak Accidents

We have a golden retriever, named Buddy, who's afraid of storms, scary movies, and the sound a didgeridoo makes. Brother 2 was playing the didgeridoo in the living room, and Buddy was jumping around barking at him.

Me: Stop freaking out the dog.

Brother 2: You know, Buddy used to be a concert didgeridoo player.

Me: Really? Then why is he afraid of it?

Brother 2: Well, ever since that freak didgeridoo accident, he hasn't been able to handle the sound of it.

Me: What happened during the freak didgeridoo accident?

Brother 2: It's too traumatizing, I can't discuss it.