I really dont have too many gripes but it irks me when pilots wait until 5 minutes before departure to call me and request more fuel. Im in no way stingy with fuel and if you want more, you can give me a justifiable reason as to why you need it, and I dont have to bump people, you get no argument from me. But, seriously guys, you picked that paperwork up an hour ago and you initialized your ACARS half an hour ago...for Friggs Sakes, call me as soon as you think you want more...dont wait until 5 minutes before push to say you want an extra 500 lbs! Because I have to ammend your release. Then I have to call the station and tell them I ammended it so they can call the fuelers back... and you will take a delay. The problem with this is that, 9 times out of 10, the station codes the delay to DISPATCH and I get dragged in for the dispatcher version of a carpet dance to explain why I have a 07C delay for late release ammendment!
The other thing that irks me is the Captain that calls into DX half cocked. Maybe he's having a bad day. Maybe hes tired or angry at scheduling. Maybe the FA dumped coffee down his back or the previous captain stuck him with an open write up...whatever. Calling into DX and launching into a tirade over the phone without even identifying yourself or your flight number is going to get you nowhere and it certainly wont earn you any favors. You wouldnt expect me to behave that way, please show me the same respect.
Also, dispatchers are not machines. We dispatch thousands of flights a year...yes, we do make an occasional minor mistake...the kind that makes you face palm and shake your head. But Just remember, many of us are commuters who sit on a jumpseat a hundred times a year and we've seen you guys make some minor, albeit boneheaded mistakes also. Please keep that in mind.