There was a charter operator in the Bankrun business in the 1990's that suffered some Chieftain sabotage while parked overnight at Bankstown.
As I recall, there was some sort of acid or strong alkaline poured into the oil filler, which ate through the sump (long time ago now, don't shoot me
)
The main problem for the coppers would have been too many people with a motive to cause the guy grief.
