Weka can be a lot of fun too, I saw a pack of them opening someone's backpack zipper to find out what's inside.
I was having a burrito on manly wharf a long while back, a seagull just lands on the table and death stares me...i felt uncomfortable and moved, because i know they will try and take my food off me!
Cockatoos are worse and will flip the lid of a wheelie bin if in the mood. Crows will as well if you overfill and the lid is not shut properly.
They are smart!