You know those flippant responses we get when we disclose our condition to someone, they say things like "Well, everyone's a bit autistic", or "we all have things we need to work on", "they're over-diagnosing the latest fad label these days, back in the 90s it was ADHD", "I don't think you're really autistic" or the worst one "it's all in your hand / it's mind over matter" (the pat response to any psychiatric disorder)
Obviously (or rather, as learned thru painful experience) these are just cues to move on to a less taboo subject than psychiatric disorders, and you can't help but chuckle at the irony that we don't pick up that cue (i.e. we continue to challenge them on the reply) - thus validating what they didn't want to believe
WELL... here's a way you can catch people by surprise: instead of asserting your condition directly, tell them "You know, apparently I'm alleged partially autistic, at least that's one some quack once told me - but I don't see it." Then see if they argue the reverse, that they do see this or that trait in you that smacks of ASD / HFA... and/or criticize you being oblivious or in denial... or, just maybe, they'll pick up you being subtly indignant about how people have the wrong prejudiced attitude towards your autism spectrum disorder.
Hey, it'd be an interesting psychological experiment, no? 