Possible Duplicate:
Is the Critic badge badge awarded prematurely
A story and a question...
I pressed the +1 arrow next to an answer on someone else's question before realising it was wrong. So I pressed the -1 arrow, thinking this would cancel out my +1. It didn't, it took one away from the original score, so I pressed up again and then learnt that I had to re-press 'up' to undo it.
No problem, I've learnt about the interface and how to use it during this simple exercise.
The bug/feature/other odd behavious was in fact that I was then awarded the Critic badge (for giving negative feedback). Perhaps it's intentional, but it seems odd to be awarded a badge for something I didn't commit to do (it was undone less than a second later). Can users gain all their badges by clicking things once and then undoing them?