What's crawled up his butt?

So I used to could pick him up whenever I wanted. Then one day, I had him out, and seems like he had an attitude change. He struck at me. He must have bad aim. He missed. But ever since then Every time I open the door to his cage, he coils up ready to strike. If I put my hand in. He strikes at it. He can't be hungry, he just ate two days ago.

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Could he be stressed from his environment?

Is husbandry on point?

Does he have adequate coverage/hides, etc... to feel secure?

Too much light?

Just spit-balling here, trying to think of possible reasons for the behavior.

Yeah. Everything is good. Other two live in same type acrylic cage. Same temps. Same humidity. And they let me just scoop them up without even looking. Soon as I'm just standing in front of this ones cage. He comes out of his hide to the front and stares me down.

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Sounds hungry. What does the snake weigh? What prey is offered and how often?

148 g. Gets a live hopper every 5 days. Just ate 2 days ago.

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At 148g he should be on large adult mice! Mine is around that size and is eating large mice. If not large definitely go for larger sized small mice if large seems too big. I feed every 7 days and my lil guy is happy. Make sure it's the same or even a tiny bit bigger than the girth of your snakes largest part of the body.

Hoppers are way too small. Your snake is hungry.