You Can Tell A Lot About Someone by How They Treat Animals
A brief disclaimer before I get into this: I am not an activist, a PETA member (a critic of them in fact), or otherwise. I do not make a cake for my pet's birthday, get him a Christmas present or the like. I believe in the right to hunt and I consume animal flesh on a daily basis. In other words, I'm not an extremist, but I do believe that if someone is a jerk to animals, they are likely a jerk in other areas of their life as well. If you're in a new romantic relationship with someone and you see them abuse their pet, I'm hoping that sets off a red flag for you because you'll probably be on the receiving end of that temper someday.
On the flip side of this, I think someone who does something nice for an animal just for the sake of being a good human being can get some positive attention. Case in point: Jason Gasparik. Jason was driving when he noticed a chocolate lab out in the traffic. Jason decided to stop, wrangle the dog and start looking for its owner. He went to the vet to see if there was a microchip (there was, but it was unregistered), he placed ads on social media...nothing. The following day, Jason took the dog and stood on the street corner near where he'd found the dog with a sign that read "Do you know this lost dog?" A friend of the owner saw the sign and ultimately the dog made it back to his home.
After a photo of Jason really going out of his way to reunite dog and owner went viral, Jason started receiving tons of requests for dates. I'm not equipped to rate Jason on a scale based on his looks, but I'm pretty certain the thing that got him noticed here was kindness.