Inappropriate jargon, On using constantly

Only use jargon from a different profession if it will cause hilarity to ensue. Be aware that using said jargon inappropriately could cause psychological fatigue and all-around bad will between members of your office. For example, many bosses use the term 'E.T.A.' which is taken from the police phrase 'estimated time of arrival.' If you are an actual member of your local police, fire, or military unit, it is totally appropriate to use this phrase. However, library managers, should never try to be cute (or, shockingly, in some cases they try to project some semblance of power) by misusing such a phrase. When the boss goes 'what is your E.T.A. on that project for the board meeting?' you have every right to snort sarcastically in the boss' direction. Seriously, E.T.A? W.T.F.?!?!? And if your boss ever tells you to do something 'stat', then you've earned the right to throw something hard in his/her direction. That's just going too far.