Big or small.... very small a faithful dog can be very territorial. https://x.com/accuweather/status/1953499600020811820?ref_src=twsrc^tfw|twcamp^tweetembed|twterm^1953499600020811820|twgr^da552a165135279375fc2e007ef07466f8fcd424|twcon^s1_c10&ref_url=https://www.mediaite.com/online/watch-pomeranian-fearlessly-chases-away-bear-that-wanders-into-family-home/
A lot of truth there. My Grandma had a little Chihuahua mix dog when I was under 10 yrs old ,, 50+ yrs ago. That pup was highly protective of my Grandma ,, but if that pup was sitting in your lap ,, if you just made a little push on the back of her neck ,, towards someone,, and quietly said ,," sick'em" ,, that little pup would jump , run and attack ,, whatever , and whoever you sicked her on ,,and wouldn't quit , till you called her back.Dogs name was , Gina. Hadn't thought about that dog in 50 yrs .