Equal Opportunities

I've been applying for jobs. Most have an equal opportunities form to fill in and submit with the application. They ask questions that may or may not be relevant or helpful. However, leaving that aside this one 'ere asks about sexuality. Am I Heterosexual, Bisexual, Lesbian, Gay or 'other'? Much discussion ensues about what 'other' might mean...I suppose if one were only interested in sex with animals that would be 'other'...Or perhaps I've missed something...