Pushing flight crews  

As a professional pilot, me and my crew for the shift get to go or no/go. If I get a flight request that will take me over 14 hours I turn it down. Now if I slept for 6 hours while on duty or sat around all day watching TV and get a late flight that looks like I will get back to base on time I take it. Should the crew get delayed and I go over 14 hours, no big deal. The FAR's allow for this. However if I had 4 flights during the shift and a late request look like I maybe pushing 14 hours I say no. It's all on me and no body can make me go against my will. End of story, let it go.