I was stopped by security for my sports gear, which was admittedly unusual, but the reaction of the security guards was simply unacceptable. They were condescending, disrespectful, and had far too many preconceived notions about who I was based on stereotypes. It was clear that they were more interested in mocking me than in actually ensuring my safety. They kept me waiting an unnecessarily long time and acted like I was a complete inconvenience. I was gobsmacked at their behavior. Avoid Frankfurt Airport if you want to be treated with respect and dignity.