It took me nearly two decades working in IT before I was in a position where I was respected, secure and comfortable enough to be able to say "I don't know" in

It took me nearly two decades working in IT before I was in a position where I was respected, secure and comfortable enough to be able to say "I don't know" in front of the business client. If I had said that even after five years on the job I would have been hauled into a meeting room by my manager and dressed-down for giving a 'poor image of the Technology department'. Unfortunately that's also one of the reasons we have so much buggy code; people are afraid to express their lack of knowledge of a particular subject, so they kludge on through with some code pasted from a Google search.