<human>: Can you condense the text into three sentences or less?

I sometimes take in dogs when it's apparent that they are lost or abandoned. I'll find their people and return them, or if I can't find their owners I'll find a new home for them. Last night I took in a pitbull puppy that was roaming a friend's neighborhood since she was very friendly but also very cold. It was dusk, with temperatures dropping quickly. We drove around the neighborhood and asked people if they knew her or recognized her, with no luck. No collar on her, that would be too easy.

Last night as we got to know her a bit a few things began to worry me. First is that she is quite scared of men. She'll come to me when I call, but is extremely submissive and appears to come out of fear rather than wanting affection. She is not like this with my wife or kids. She has some scars on her head and face which might have come from fighting, and something not quite right about one side of her muzzle, I'm not sure what it is but her fur doesn't grow quite right.

The main thing that has sent alarm bells ringing for me is that she has one badly cropped ear. It's pretty obviously a DIY ear cropping because it's not shaped anywhere close to "correct". The right ear is natural, the left is really badly cropped.

On one hand, it could be that someone else rescued her from a bad situation. On the other hand, I might be returning her to an abusive home. She is a sweetheart, and is getting along great with my 5 kids, 4 other dogs and 3 cats. I cannot keep her so I'll have to home her anyways, but my spidey sense is tingling about trying to find her family.
<bot>: Found a dog roaming streets, I think that she might come from an abusive home. Not sure if I should look for her owner or just find her a good home.