I almost stole someone's dog today...

I almost stole someone's dog today - accidentally.  I was getting some gas and I saw her following a guy out of the parking lot.  What I didn't see was him come back and go into the store.  So the dog comes up and licks me and sits on my feet - super friendly.  She was well fed and had a collar, but not surprisingly, no tags.  I pumped my gas, put oil in my car, and she was still there.  I even waited another 10 minutes or so to see if anyone would come out and claim her, but no one did.  So I let her in my car.  Literally - I was getting in my car when he came out and said "Hey, that's my dog!"  I was like, "Thank goodness because I don't need another!  I didn't see you come back!"  He was like, "It's cool."   And they left together.  No leash or anything in a busy gas-station parking lot on Quintard.  At the very least I would have tied her somewhere to keep her from getting hit while I was shopping had it been my dog.  People are crazy!