Saboteurs cutting brake cables on U.K. cars

Over an 8-month period owners of nine vehicles, including three Mercedes and a BMW, found that their brake cables had been severed.  A forensic investigation revealed that the culprits were foxes.

"Foxes chew a wide range of objects - rubber and other balls, cables, garden hoses, shoes, gloves and pipes under houses... They occasionally also chew brake cables; sometimes this is simply part of their usual behaviour of chewing objects, particularly those made of rubber, plastic or leather.  However, it appears that they also occasionally develop a taste for brake fluids..."

I know that the ethylene glycol in antifreeze is quite sweet - and highly toxic to humans.  I'm not sure re the palatability or toxicity of brake fluids.