Good thought, but no.
Do you rub your back against a tree like a grizzly bear?
Do you use a human back scratcher?
Are the holes made by a massaging device?
Are the holes cooking related?
Do the shirt materials matter? Are they synthetic or natural fiber?
Spend a lot of time near campfires?
No to all.
Do any of your coworkers have this problem?
Not a one! My employees’ shirts are fine.
do the holes come from something you lean back against, like (but not limited to) your office chair or car seat?
Nope.
Although they do happen while I’m sitting in my office chair, but the chair is innocent.
Do they happen while you’re sitting in your office chair while in your office?
You said no cats; but are there any non-human animals involved?
Yes
YES!!!
And I think that with @thorny_locust’s last question the puzzle is basically solved. Anyone want to guess the specifics?
Ideally, someone with another puzzle ready. Because I ain’t got one, and I need to go do market harvest.
Mosquitoes?
ETA: Are their animals in your office chair causing the holes?
Heh, no. And I have to do some things that will keep me away for a bit, so here goes:
Every day I bring one or two dogs to work with me. For the past 15 years I’ve also brought our bird, Rocco.
He is generally a good bird, but if I am working (which I have to occasionally do at work) and he is bored, he’ll sneak over to the back of my chair and bite little holes into my shirt to get my attention.
He does this every day at least once, and I tolerate it. It has left me with dozens of shirts with holes in the back.
Can’t go wrong with a bird named Rocco.
Ah, so it’s your parrot stabbing you in the back, not one of your employees.
Heh, he’s actually gentle and careful. He’s never so much as pinched my skin. Just snip and my shirt has another tiny hole.
I have a scenario that’s kind of the opposite of that, in that I don’t actually know whether I’m right. But I think it can fit this thread, and so I’ll give it a try…
So I visited a business, and I was given some information by one of the employees there, and I soon reached the conclusion that said employee wasn’t using their real name. But, again: I don’t actually know whether I’m right, because this isn’t that sort of situation. Which I suppose raises the question: well, then, what sort of situation is it? Why did I reach that conclusion?
Was the employee wearing a name tag/badge?
IIRC, yes; wouldn’t have mattered either way, though.
Is it connected to their ethnic or cultural origin? For instance, a Chinese person called Mr Smith?