Aircraft refuellers are generally the friendliest, jolliest people I meet on the ramp during a day's work.
Even if the weather is dreadful, the schedule going to rat!!!!, you guys are generally there with a bit of banter and something cheery to say. Not met a miserable refueller yet.
The only thing that sometimes need sorting out is the communication channel between us and yourselves, usually via the handling agent. I'm sometimes boggled to see a tanker hanging around a delayed 757 for 20 minutes, when we could have been done in that time and on our way. It's our collective problem, but I can't see anything we can constructively do about it, other than winge to handling.
I'm very impressed with the professionalism of the tanker drivers (I know a little about COSH and the examinations you have).. no complaints. Keep up the sterling work