Imagine mowing the nature strip after Superman's dog has passed by ...
'Twang'
'Crash'
'Aaaaagh'
* 'In our special news bulletin tonight ... a motorist has been severely injured by an apparently indestructible piece of matter that flew off a lawnmower and shattered his car window. According to paramedics, the motorist said 'I hardly knew what hit me. This matter came flying at me like a speeding bullet ........' *