26. Chihuahua
Chihuahuas are small-bodied dogs. But don’t let their body fool you. They are famously known to be jealous, destructive, cynical, and assertive. They consider themselves to be the alpha in any pack and household due to their dauntlessness. Chihuahuas are known to mesmerize their owners with their cute and cuddly charms to get what they want, which can reinforce their dangerous behavior.