Was doing some gardening out the front on Saturday, on the driveway cutting up branches for the green bin. We've got a rock retaining wall to the right, and I notice something moving out of the corner of my eye.
About a metre away, I see a huge orange/black wasp literally dragging a huntsman spider out from one of the gaps between the rocks.

I don't like wasps or huntsman spiders, so I take a step back and continue to watch the show.
A few seconds later, a kookaburra swoops down and lands on the ground in front of me.

It sizes up the situation and then pecks out at the wasp/spider. The wasp drops the spider which lands on the rock, and proceeds to buzz around the kookaburra stinging at its head a few times. It flies off, while the kookaburra calmly pecks at the huntsman and begins to devour it, taking about 6-10 chews before it's down the hatch.
The kooka then flew back to the top of a light pole probably with a sore head, and a few minutes later the wasp comes back sniffing at the ground probably looking for any left over spider
It was quite a show!