The worst, for me, is the British Embassy (i'm a Brtitish citizen) but my best friend's wife was trying to join him for a week in the UK as he's left for work. The embassy staff asked her to renew her passport because her country came out with a new one, she got the new passport went back they laughed at her and said: come back on Sunday when she went back, they simply told her we're not giving you a visa, not fair. the poor thing really wanted to go see her inlaws she never met them.
Sad