LOL. If that thing in the background is a giant wombat, I'm glad it's extinct. Could you imagine running from one of those?
I would run from the one in the foreground for sure.
The one in the back might make a tasty barbecue.
According to the theories I've heard about how fast those things move you could probably get away with strolling away from them.
The biggest threat those things would pose if they were still around is as a traffic hazard. If that thing is built as dense as a wombat is and developed the same habit of wandering onto highways it'd probably total anything that ran into it.
"Could you imagine running from one of those?"
When being chased by *any* predator; you only have to run faster than the guy behind you....:)