One thing about these guys, they can squeeze through the smallest spaces.

I had a 3600 gram female get out of her tub, and was frantic searching for her. You'd think something 5' long and 6 plus pounds would be easy to spot in a bedroom, but I couldn't find her anywhere. I was to the point of tearing out my hair, when I thought to look behind the main rack, which sits a good 7" from the wall. No snake. As I was turning my head to back out of the corner, I saw a dark smudge behind the breeder rack, which is no more than 2" from the wall. It was her. Somehow a snake who is a solid 6" thick squeezed into a space 2" deep. And I almost had to dismantle the rack to get her out, because she had no intention of giving up her new hiding spot.

So if a 6" snake can squeeze into 2". If your boy is half her size, he'd need less than an inch to get out. That is pretty darn small. I am happy you found him so easily. Most people who loose one can't find it for days or even weeks.

Gale