The mystery of 6 destroyed shirts

I am putting this mystery out into the internets, hoping that someone can solve this for me. I have lost 7 of my everyday shirts to a mysterious scourge of tiny holes. Every day I lose another one. I only had about 12 shirts, total, in my whole wardrobe to begin with, so this is quite a blow. I am now wearing tank tops with sweaters a lot.

You might think moths, right? Well, here's the thing - the holes are in the SAME PLACE on each shirt. Here is a picture I drew to illustrate the location of the holes using an image I stole from a major retailer and a very cheap drawing program, because I am a terrible photographer and could not figure out how to take pictures of the 7 shirts.

Even weirder: Christian has one shirt with the same tiny holes. Only one. But I have 7.

In fact, when I started writing this post I had 6 shirts with holes. Then I looked at the shirt I was wearing, which was fully intact this morning when I put it on. Now? 5 TINY HOLES!

Here are some theories:

• The seatbelt of our car. I drive the Honda Fit 99% of the time, Christian rarely drives it. The seatbelt, maybe? If so, how? I have actually examined the seatbelt and cannot find any sharp pieces sticking out anywhere.
• The Ergo. I use it every day. I did use it today, when these holes appeared. Christian rarely uses it. Again, I have examined the Ergo and cannot find any sharp pieces sticking out anywhere.
• Leaning against counters. This blogger says this is why she got holes in her clothes. But she only had one hole in each shirt. I have 5-6 tiny holes. Also, my holes do not look like something has worn into them. They look like something caught on the cloth.

Can anyone help me solve this mystery? Pretty soon I will be entirely shirtless.

Related: any shirt manufacturers out there who need me to review their clothing? Now accepting free shirts.

SOLVED: Here is my final conclusion on what happened to my shirts!

UPDATE: I am now wearing aprons at the deathly countertops.