It is far to easy to fall into this trap. At my last job my boss always tryed to finish all my tickets until a friend in managment told me about a conversation he had with our boss. It boils down to: "Does he gt his work done?" "Yes, sometimes he has to stay in late but he gets the job done" "Then we are not giving him enough work. If there are days where he gets the job done and leave on time, there must be times when he finishes his tickets before office hours are over."

At my new job things are a lot better. When I started I screwed up a couple of times because I tryed to make things work by putting in over time and fighting until the last minute when things went south, where all I had to do was tell the mangment why I need more time / manpower like anyone else in my company.