My husband has a thing for lightning. Even if we're in a car, he'll jump and blurt out "Whoa," while frantically looking for the closest place to find cover, if we're too close to anything even close to resembling a big white bolt. We've been married a long time, and it still makes me laugh, every single time.
My children (from the oldest to the youngest) all have quirks, and to me they're endearing, but to others...well, maybe they're not.
For me, using Febreze to Go in public restrooms is my quirk. Weird, I know. That's why it's called a quirk. But I don't go anywhere without it. I do all of the other preliminary things you have to do in a public restroom to stay safe from germs, but first I spray that spray. The second I walk in the stall. And if no one else is in the bathroom, I'll spray a little spritz of it in the air while I'm walking TO the stall, lol. Trust me, it freshens the air... I just love it.
This summer my daughter (13) and toddler had to squeeze into a stall with me at the amusement park, because it was too crowded to wait, or whatever (hey, stuff like that happens when you're a mom). Both of the kids went a little nuts when I sprayed the spray, like it was the most outrageous, weirdest thing they'd ever seen in their lives (and they weren't quiet about it). When I flushed w/my foot it was just too much for them to bear, and the peals of laughter began. My toddler has long since gotten over it, but my daughter still brings it up from time-to-time.
So, I've shared mine. Your turn to share, if you want to. What's your quirk?