My service dog Rotweiller was about 2 years old. Took him to a gun show.
Off to the side of the main show, a guy had set up his taxidermy booth.
Just as you step in the door, you were greeted with a shoulder mount of about a 200 pound boar with mouth wide open!
Next thing I feel is my Rotty moving between me and the mount, growling and pushing me aside, away from the mount.
There was a seat just inside the door. I sat down and made the dog "Sit".
A few minutes talking him, I could feel him relax.
Then I took him over and let him sniff the mount.
The rest of the day, he never paid the mount any attention.
Funny to begin with though!

The old man today. He will be 13 this summer.
He's "retired" these days and spends his time doing this.
In his day, he was an awesome creature.
He would mind every command.
Gentle as a lamb.
He was tackled in a drug store by a special needs kid one morning! Never fazed him!
Tell him, "Give." and you can still take his food bowl....while he's eating.