Temperature, I have a wide tolerance. people in my current office space are forever complaining about the AC and playing with it. They ask me whether I’m hot/cold to which I reply “no” (and mutter under my breath about the Deming funnel and how them messing with the control is only making things worse)
People forgetting anniversaries, birthdays, etc. just doesn’t matter to me.
People calling me by the wrong name. Even husband can get away with it if it doesn’t happen too often!
I don’t really have a sense of smell either. I’m glad because it seems like smells cause people to bitch all the time. 
Another one for zombie threads.
I don’t care which way the toilet paper goes on the roll.
I enjoy winter.
I don’t mind drinking coffee that’s gone cold.
Same with me. I ride my bicycle to work year round. I live in a northern climate (not far from US/Canada border) so the typical range I see in that year is 0-90 Fahrenheit. You acclimate. Currently, my morning ride is in the 20s and it now feels not so bad. When I leave work it’s in the 40s and I can wear my shorts at that temp. The only thing that stinks about winter riding is my bike is heavy (fenders, heavy studded tires, lights, etc) and I’m already looking forward to April when I can go back to a light bike. Those e-bikes look better every winter. I’m waiting for my winter bike to break so I can justify it - I’ve had it 20 years so it’s gotta break one of these days. 
I didn’t realize that mandolin music bothered people but if it does I have to agree with RioRico.
My other answer would be how people like their food. Steak well done, beans in chili, mayo on anything.
Me
Unrealistic or inaccurate things in movies and T.V. shows. I honestly didn’t know this was an issue for people before the Internet. Movies and T.V. shows are not supposed to be realistic, they are supposed to be entertaining. If I want reality, I’ll look around me. I just can’t see getting upset because something in a movie is not the same as it is in real life.
I like the smell of my own farts… but nobody else’s.
People screwing around at work. If they’re not making my job harder or endangering our customers, not my problem. It’s not my job to make sure you do yours.
When someone says something, dresses a certain way, or presents a symbol or sign that others find offensive and hurtful and they do it with zero malicious intent, I really don’t give crap.
If someone finds some random swastika patterns in a first graders mosaic art project I couldn’t care less.
If someone is a big Beyonce fan and puts on some bronzer to dress like her for Halloween so what?
If some kids want to play the circle game and have never heard that it is now considered some kind of white supremacy sign, let them play the dumb circle game.
If some girl is a big fan of rap music and someone catches her singing along to a song and she says the n-word I think she is a fan of rap music and nothing else.
Comic sans. I am vehemently against some typefaces, but I think there’s a place for Comic Sans. Probably not on your business card. Certainly not on MY business card. But I think it’s a good choice at times. Like if you don’t have Dom Casual.
Spiders, bugs in the house, snakes. Animal feces (I have cleaned up too much of too many species to care). “Germs” in situations where the likelihood of contacting a contagious disease or a parasite is extremely unlikely. Pet rats.
I also like winter.
I’m old but I like some tattoos. I don’t have any and likely won’t ever get any. I see images online of some insanely great (IMHO) tattoos. I just hate the ones I see in real life. I swear, the people I work with look for what ever tattoo place is closest and their first question is “What’s on sale?”
The DST and back again time changes. It’s an hour, not the end of the world.
“Creepy-crawly” things - spiders, snakes, ants, bees etc. They don’t worry me at all.
I find it impossible to imagine any word or phrase that would get me so riled up to punch, shoot, or run over someone. My motto is “Sticks & stones…”
Insult my race, my occupation, my heritage or my mama…I can’t find any word so offensive as to require a violent reaction.
But you use a single offensive epithet to some people, and you better run for your life.
I have no problem with that…
But…
How do you feel about Myron Florin music? Dick Contino music? Florian Zabach music? All three together? While stoned?
I’m glad there’s three others out there!
There’s a pit thread out there about this, and I posted my opinion, and wasn’t summarily booted out of the thread for it, but it certainly was going against the general tone of that thread.
I invite JW’s in my home and we have a nice chat. I know they really want to make a major difference in my life, and I also know that it must stink to deal with folks from that pit thread all day long. So we chat.
And they explain their doctrines and theology and I explain mine, and we look at a few Bible verses. What’s wrong with that? It puts me in a position where I have to consider the reasons between certain doctrines, and that’s not necessarily a bad thing.
A certain signature.
Regards,
krondys
Answering unfamiliar phone numbers.
Judging by Reddit video game subs, people taking screenshots of funny/interesting things by taking a picture with a phone…