I'd never go into business with him. He seems squirrelly to me.

我决不会和他做生意，他看上去靠不住。

youdao

Stuck in second gear with a squirrelly front brake, I finally gave up all hope of a swim.

NEWYORKER: Swimming

But when I brought up Augusta National (site of the Masters, of course) the players all got a bit squirrelly.

FORBES: Fishing Augusta National