For purposes of this Article "intimidating animal" includes and means the following:

1.  Any snake.

2.  Any dangerous or vicious dog as defined in this Chapter.

3.  Any animal that attacks, charges or approaches or attempts to attack, charge or approach a person or animal while barking, growling, with raised hackles, or in any other threatening manner and under circumstances that would cause a reasonable person to be startled, afraid or in fear of harm. This shall not include such behavior if displayed under circumstances in which the owner or custodian could lawfully use force to defend person or property or where the animal is injured.

4.  Any animal that has previously been used to assault, intimidate or frighten any person.

5.  Any snake or canine owned or in the custody of any person previously convicted of allowing, permitting or encouraging an animal to attack, assault, intimidate, or frighten any person or animal if such canine is of a size or appearance as to be reasonably perceived capable of causing harm to any person or companion animal if provoked.

6. Any animal that pursuant to the procedure set forth in Section 66-20 below has been declared an intimidating animal.