They aren't depraved or polymorphously perverse incarnations of uninhibited sexual mores; they're just attracted to both sexes. Some pass for straight or gay or allow others to make their own assumptions.
Bisexuals are not portrayed so much for their mannerisms as their supposed habits.
RESIGNED FROM POSITION – RETAINED POSITION AS TENURED PHYSICS PROFESSOR – AND LOST CIVIL LAWSUIT.
(Note – he did it again – see PHYSICS FACULTY, below). RESIGNED POST AND JOINED FACULTY AS ONLINE INSTRUCTOR. (38) 2017: Chris Loschiavo, Deputy Title IX Coordinator, University of Florida.
Finally, a number of publicized cases of sexual harassment, sexual assault, sexual misconduct, stalking, violations of dating policies, violations of campus pornography policies, or similar violations by faculty/administrators towards students or colleagues are described too nebulously to identify the school, or are still winding their way through university or court processes.
I posted links to some of these under the general heading OTHER so that they are at least noted.
The most likely bisexual archetype to lead to But Not Too Bi.
Compare and contrast Everyone Is Bi, where either this trope is in effect for the majority of the cast or sexuality is simply presented as a non-issue. You go to bed one night, wake up the next morning and poof, you're a lesbian?
I thought it might help to compile publicized sexual harassment and related stories in academia – there’s a whole bunch of other stories in industry, technology, media, and beyond.
Recent reports are easier to find, but notice how these stretch back in 1981.
As a result, a het-seeming bisexual reads as Straight Gay, whereas a bisexual that acts Camp Gay is likely to be seen as subverting the stereotypes associated with a camp persona.