Could be, but still isn't worth the risk. I know a lot of people would claim to take them on but in the middle of the night when your half asleep and a couple of awake and alert geezers are ready to do you for a car, i would have to say let them take the foooker and hope the old bill can do their job.
had heard of one bloke who heard a noise and came down to find they had got in, knicked his keys, wallet, mobile phone and house keys and had locked him in his house after cutting the phone wires.
Leaving him stuck in his own house, gotta climb out of a window and get to a neighbours before he can alert the police, thieves would be long gone!