Are guests suicidal?

I swear, every time I have to bring a pallet through the sales floor they are insistent on maintaining their current course, even if we would both collide. And it's not like I'm crossing a narrow corner or anything. I'm taking the widest and most predictable paths through the store, slow enough to see and react to me, and yet they feel the need to proceed onto what would be a collision course with a heavy and unwieldy pallet of ice. I feel safer driving in my car on a busy intersection in comparison.