I'm a worry wart these days I guess....

Judicious planning, meticulous inspection of your equipment and having the proper tools (truck) for the job are all keys to a successful trip. Stress is usually caused by poor planning and/or attempting to do a job without the proper tools and supplies at hand. This from 35 years as a field service mechanic where I entered a customers facility with two strikes against me. One, a mad customer because his equipment was broken costing him thousands of dollars an hour, and two, not knowing if I had all the parts to fix it fast enough.