Is he your only snake?
I've only had one of my males get fussy in that way without having other snakes nearby. Typically it's more of a response when I've been working in tubs that have other males first. I don't usually give mine the chance to get that defensive though and I'll pick them up before they get into striking positions. They usually switch back to running mode for me, sometimes with a little more thrashing than I'd like, but when putting them back in the enclosure they're usually snapped out of being little buttheads and would rather just go back to hiding.
I have had females sometimes get fussy like this, especially close to ovulation. Those are times I just leave them alone and don't really bother them much unless absolutely necessary.