Yeah, people are way too sensitive. But, that's why they need to be exposed to people with a sense of humor. If they live in their little "everything is offensive" bubble where they're always right, they'll think that way forever so kudos to you for being able to crack a joke knowing full well what these people are like. And I'm bisexual too. I knew by the time I was 5 that I thought of boys and girls the same, as far as attractiveness goes. I didn't get offended, even though I know plenty of people actually think it's a phase, because I knew you were kidding. And I wouldn't care, even if you were completely serious because I don't need your opinion to be validated (which these kids probably do).