Stud finder mistakes refrigerant line for stud when hanging shelves

What people tried

Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.

1. 1
   Using magnet stud finders instead of electronic ones
2. 2
   Using a borescope to inspect inside the wall before drilling
3. 3
   Applying constant but low pressure on drywall with a drill on low speed
4. 4
   Limiting screw length to avoid hidden pipes and electrical wires inside studs
5. 5
   Using simple push pins instead of nails for lightweight items
6. 6
   Using Command strips or short nails
7. 7
   Checking for studs with a stud finder to avoid plumbing or electrical lines
8. 8
   Using specialized wall-scanning devices like Wallabot to detect pipes before nailing
9. 9
   knocking on the wall with knuckles to find studs by sound
10. 10
    drilling a tiny pilot hole to confirm before committing

In their words

Unedited, most upvoted first, each linked to the thread it came from.