Quote from @Alan F.:

Yep, there are many areas here I won't work in, S.F., Oakland, and several D areas.

Thieves are well aware of what's on or in an electricians truck. Customers in those areas aren't looking for quality work anyway.

My Brother in law is an underground contractor with a contract with city of Richmond.. Not a lot of stuff to steal off of his trucks etc.. But one morning we drove over so he could show me a job and there had been a big shoot out on the street with all those little yellow cones placed over spent shells.  

When i was in Jackson MS doing my loan thing.. only certain subs would work in the city or C and D class rental areas all the subs that do new builds etc would no way go near it.. U had to pack out everything Every night no way you could leave anything and you had to back the truck right up to the front door thereby ruining the lawn :)  heck many of the tenants do the same they drive right up to the front door in their car and park there.. Its pretty wild. Also we would not place AC or HVAC unit or appliances until the day before tenant moved in or that morning. Otherwise some neighbor would call their uncle and it was gone.  . Now i work in Baltimore these days and we have had a few thefts but nothing like jackson MS thats for sure.