When you have Asperger's Syndrome, you need a sense of humour. A lot of it. In one sense, it's like experiencing the Big Bang Theory in real life. Not all autistics will necessarily come off that way, but we definitely share many Sheldon Cooper quirks. Some of our faux-pas may be be incredibly minor, or absolutely outrageous to the point that it might make some question if we have any common sense at all. We do reason, only differently. We have to develop our theory of mind whereas everyone else is walking around already being able to predict what someone might say or do in certain situations. I've outgrown most of my big no-nos with time by creating a database in my mind of what hasn't worked in the past.
Some sensory seeking autistic children are drawn to scents, whether pleasant or foul. It doesn't take much of an imagination to figure out why that might not always be a good thing. I love things that smell pleasant. I cannot tolerate bad smells of any sort. I don't like visiting the streets of New York all that much because there's trash everywhere and a lingering smell of garbage.
I used to have a collection of scented candles of various scents. I used to hermit in my room and hog all the aroma so it wouldn't dilute going into the other rooms. My best friend gave me an assortment of small things for my birthday in grade 8. I loved all of it, except the small candle she gave me because it was unscented. I thought to myself "what a waste of wax, this is going straight to the regift pile!". A few months later we attended her friend's birthday together. The girl unwrapped my gift first. There it was, the unscented candle I was given. I only realized my faux-pas when I noticed the look of horror on my friend's face. Rest assured, she's still my best friend today so I mustn't have been such bad company, even though I trip socially at times. Sometimes you just have to say oops and move on!
When you're gifted, something's got to give somewhere. Usually, that something is social intelligence. While some people can tactfully get away with regiving, I've learned that the gifted shouldn't regift.