Any ideas, best practices or suggestions for appliance of a MOSFET to prevent current

AF5AA
FDS
6576

I’ve soldered it on a breakout.

Pictures:
https://dl.dropboxusercontent.com/u/1147392/FDS6576-1.JPG
https://dl.dropboxusercontent.com/u/1147392/FDS6576-2.JPG

In the datasheet it says also: Gate Threshold Voltage min -0.4. So with 5 - 3.3V the difference is already -1.7Volt. So I think current is running already?

Have you more than this one?
Can you send me one? Got my own breakouts.

I have one extra. Please mail me your address, so I can send it to you. I have some spare breakouts as well.

brueglju at gmail dot com