Inbound defect notification is the biggest annoyance for me, sick of "we'd like to see an E&I engineer on arrival" - I just stand in front of the aircraft and wave now if they call up saying that - they can see me from there.
What is so hard about reading out what you've written in the log over the wireless. 30 min transit, 5min waiting for the punters to dawdle off, get on, find out defect is a no go or a Cat A MEL which can't depart if you have parts, 5min back to office to see if we have parts, back to aircraft, boarding time already and delay ensues.
New captains are fun, if you get a few go thru together, one will always be Captain Writey and one will be a good bloke who cops emergencies like they are going out of fashion.