Awwww, RIP Amos!
I always remember the story where a woman’s chihuahua saved her from a mugging by leaping from her arms and latching on to the mugger’s throat - good doggie! I guess they can do some damage if they are so inclined.
Little dogs like that are likely to bite.
We have one and she’s a monster. 10 lbs of fighting fury. Nobody gets near the house without getting busted by Coco.
One night the pit bull next door got loose and was at our gate. Coco charged the gate and the pittbull layed down, rolled on its back and would not move until Coco finally realeased it by walking away. Hysterical! :-)