Christian workers.

In timothy( i think) it says study to show yourself approved a workman who needs not be ashamed. but i think a lot of christians are an embarassment to God by how they represent Him in the workplace. They steal stationery, waste time, call in sick falsely, engage in dishonest practices, shut their eyes to evil, and in general behave like sinners (sometimes even worse). It is so terrible. how can we witness to others when we can't be trusted ourselves? lead by example is my formula and i hope i am not the only one who believes in it. God help those who get caught (maybe) as it would be double embarassment for being a criminal and being a fraudulent christian. just annoyed me recently, wanted to vent. later.