@hrefna at least if you have documentation you can get mad at the people who don't read it.

I worked with student engineers at Purdue on projects (exhibits) for my local science center that could take years and thus saw several changes to who was on the team working on it.

I cannot scream enough about the students who did NOT read their predecessors' documentation and then proceeded to make the exact same mistakes their predecessors made.

AND as the customer how rarely they talked to ME.