Stinky Baby

I miss my cat. My Stinky Baby (previously and also known as Squiggy, Bo, Bocephus, and other names) is missing. And I want him back!
Since he discovered the great outdoors it hasn't been uncommon for him to disappear for 3-4 days at a time. But he's never been gone longer than 5 days before.
It has been 8 days, and I am ready for him to come back now.

He's an unfixed male, which means he could just be shacked up with some female for a few days. I've heard that male cats will starve themselves and act stranger than usual when their female is in heat. Stinky has lost a ton of weight recently, and in the 2 days prior to his disappearance acted stranger than usual. (We're talking nonstop 'kitty talk' for hours on end. Even waking me up in the middle of the night to sit on my chest and talk to me.) And then he managed to sneak out of the house, against my attempts to keep him in to fatten him up.
I went down to the shelter to look for him.I was not happy to find out that they only keep a cat for 3 days before they put it down! And as soon as a cat comes in they test it for distemper. If the cat doesn't pass right, they put it down immediately. (My cat was an indoor cat for over a year, and hasn't been in for his shots yet.)

Chances are my cat is one block over, holed up with his girlfriend. But there are still good chances that some "do gooder" found him and either took him to the shelter or made him their pet. I've put up signs around my neighborhood hoping to get some calls.

I miss my cat. He's truly one of a kind. I hate not knowing if he is okay!!
Please put some thoughts out into the Universe to help me get my Stinky Baby back!