Five seconds spent staring at someone is an eternity if they know you’re looking. I don’t know what else to say.
Everyone gets that, but I don’t like making a rule out of it. Especially since the worst it can do is make someone a bit uncomfortable. What about autistic people and people with social disorders? It can be hard for them to know what makes people uncomfortable. Aren’t we supposed to be accommodating? Maybe I’m just bitter, because I actually was harassed once, and guess what? No one cared. So fuck all these people and their arbitrary rules that won’t help anything.
I can’t speak for other autistic people, but for me at least the issue is making eye contact, rather than about keeping it for too long. It’s harder to read body language, but not impossible. Even then, I do what I can to be conscious about how my actions may be perceived. My disability is not an excuse to be socially inept.