Technician Proximity Syndrome, happens in every field.

I honestly love those calls, it makes for an easy win and an amused user (normally). My favorite was when I worked for a car dealership, as I’d routinely get called into the shop for a computer issue only to have the tech go to reproduce the issue and it worked fine.

The number of times I heard “Man, now I know how my customers feel” was pretty damned funny.