What is the best lock?

This is how I lock my bike if I want to be sure that it's there for a prolong period of time (just pretend the long metal stick is a lamp post or summat);

Sheldon Brown method is this, thought I didn't dare to try it as it might give the theft the wrong idea that I lock my bike up badly and try and attempt to removed it;

awesome, awesome. I am convinced this is the route to go. thanks man!

oh and do you ride your fixed on normal flats?