My lunch break has become office hours for everyone else

I eat lunch at a small table near the windows because it is the one place in our office that does not look like a workstation. Unfortunately, it is also on the route between the elevators and the conference rooms.

Almost every day, someone stops with a quick question. The questions are individually reasonable. Can I review one sentence? Do I remember who owns the vendor file? Is the 2 p.m. meeting still happening? I answer because the information is usually easy and because saying, “I am eating a sandwich,” feels less urgent than whatever they need.

The result is a break made entirely of interruptions too small to object to. I finish lunch with six browser tabs open on my phone and a napkin covered in reminders. At 12:45, I return to my desk having never stopped working, only changed chairs.

I tried wearing headphones. Coworkers wave. I tried eating later, but the pattern simply moved with me. I once booked a conference room and immediately felt absurd occupying a six-person room to protect a bowl of soup. Leaving the building works, though it turns a short lunch into an expedition when the weather is bad.

Nobody is violating a clearly stated boundary because I have not stated one. I smile, answer and sometimes offer to send the document before they finish asking. My availability has taught the office how to use my lunch.

I am considering a simple response: “I’m on break, but send it to me and I’ll look after 1.” No apology, no explanation. I could also move to the far side of the cafeteria, where I am less visible, but I dislike solving every boundary problem by disappearing.

How do you make a lunch break legible in an office where being physically present means being available? Is a consistent sentence enough, or does the team need a shared norm that lunch questions wait unless something is genuinely urgent?