How do you mean? I cannot remember any particular scientific revolution where scientists were suicidal, or even particularly crestfallen.

Quantum Mechanics is the closest thing I can think of, where Einstein famously refused to accept some of the implications, and where scientists had great disagreements about things like the Copenhagen interpretation and what it means for the actual nature of reality - but I don't think any of them were sad about it.

Yeah. In principal, scientists should be excited by weird results. In practice, though, humans are complex creatures with intellectual and emotional inertia. There's an understandable element of dread when you realize your life's work finds itself on shaky ground.

I'm a plasma physicist, and personally I love weird results - new mysteries to solve! That said, there are a wide range of personality types out there. And I would also be extremely surprised if the correct solution to some particular weird result was, for instance, that the Maxwell equations are broken for that regime (other than expected quantum corrections, e.g. the Schwinger limit).