This cracking photo that captured the blockbuster battle was posted on the Premium Dad Jokes Facebook page, created by Glen Fredericks, of Adamstown Heights.

"Followers of the page universally agreed that it is Godzilla on the left, but many suggestions were made for the other cloud monster," Glen said.

These included a mutated poodle and Mufasa from The Lion King.

"Personally I think the Big Merino came up from Goulburn to battle the prehistoric sea monster to save the Hunter from imminent destruction. Not sure who won though. Godzilla probably copped that baa blast you see projecting from the merino's chest and suffered from reptile dysfunction."

A rock holding up a door at the University of Newcastle's great hall was dubbed this the "Fred Flintstone method" by Ken Scott.

Glen Fredericks says a brick would also have done the job.

"Bricks are very versatile tools," he said.

As well as keeping doors open, they can also be used to "unlock a door if it's closed", he quipped. [That reminds us of a U2 song]

Glen shared some more brick-related humour from the Premium Dad Jokes Facebook page.

"I was pondering why people keep telling me that juggling bricks is a bad idea. Then it hit me."

"Someone threw part of a brick through my front window. The police couldn't do anything. They said there wasn't enough concrete evidence."

"Which is heavier, 200 kilograms of feathers, or 200 kilograms of bricks? The feathers, because you also have to carry the weight of what you did to those poor birds."

In response to our piece on autonomous braking, Mannering Park's Garry Robinson said his Mazda also has this technology.

"It takes some getting used to. My Mazda has been known to brake unexpectedly," he said.

"The sensors inside the vehicle also watch the driver, looking for signs of lack of alertness, for example. When I first got the vehicle, I got a surprise when I leaned over to pick up an item that dropped on the floor and 'brake brake brake'."

When there are roadworks and the lane is altered, "the steering wheel shakes and alerts you to the deviation, unless you have used your indicators".

"Belmont has a number of deviations to allow for right turning lanes and the alerts happen frequently.

"Also, if a car in front is turning, most drivers deviate to the left to go around. Once again, the alert and shaking steering wheel is on again."

A couple of times, the vehicle braked and stopped in the middle of the road for no apparent reason.

"There may have been a reason, but it came as a surprise. I was able to quickly get it on the move again. I might add it saved me a $100,000 collision on another occasion. It alerted me to a dark car in my blind spot when I had started to pull out."

Garry added that the system can fail in heavy rain or if there is mud on the road, as it obscures the cameras used for autonomous braking.

"It still needs us humans to be in control, but if it stops us losing control in a mini-sleep just once, it is worth it," he said, adding that his observations were not meant as a criticism of the car, which boosts safety.

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