<human>: Pic of the culprit:
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My 14 year old indoor cat has had a number of "adventures" including one about 8 years ago that lasted over three weeks in the city, but he came back filthy and unharmed. He's neutered, but de-clawed (front) and I live close to a city park so there are a number of strays and other animals in the neighborhood and I try my best to keep him safely inside. 

Over the past few years he's been trying to get out a lot more frequently, and yesterday he managed to slip out the door without my noticing and spent the night in freezing temps. I didn't realize it until this morning and wasn't able to find him by walking around and calling before I had to leave. Obviously this is nothing new to me so I'm trying not to worry too much, but at the moment he's still out somewhere and I'm at work.

I guess I'm just curious if anyone knows why he would be doing this? Is this common behavior for older cats? Sometimes during warmer weather I allow him to go out and lay on the lawn with supervision and he usually chews on grass, but I was never sure if this was a nutritional craving for greens. I feed him Purina One urinary tract health kibble (he had a history of UTIs when he was younger)

My girlfriend suggested I put food out for him but I was thinking it would be better to do so while I'm there so I could let him in if he shows up. She thinks it would help keep him around the house until I can get back. Thoughts?

Can you give me a shortened version of the text?
<bot>: Old, neutered/de-clawed kitty likes to sneak outside. Got out again last night & I'm worried for his safety.