Old homeless guy sheltering a puppy? He can't possibly be a serial killer, can he? Think it's safe to let him in for the night? I mean, if I just have a studio apartment, it's not like I can lock the door to my bedroom and hope I don't get raped/killed/raped-and-killed in the middle of the night by Puppy Man.

Still. It's fucking raining, and he's sheltering a dog in his coat instead of wearing it himself. That shows compassion, empathy - he might be homeless but at least he's got a good soul. At the very least that shows he's not a sociopath.

I say strike up a conversation with him, see if he wants a place to stay and dry off for a few hours. Maybe take a shower. I'm sure I've got an extra razor blade, too. The dog can eat the bacon from the BLT and I can get half a dozen bagels and with the $10 and have some change left over.