Alternative thief deterrants - teabelly
I was thinking what sorts of things within a car which would put off a thief. My ideas so far:

fake dog poo, vomit and blood on the seats
fake but realistic severed hand that looks like it belonged to a thief and was trapped in an electric window
a large slavering dog (may assist in first idea but a little too real for me)

Anyone else got any more suggestions?
teabelly
Alternative thief deterrants - volvoman
Michael Jackson
Barbara Cartland
Danny La Rue
John Inman
Alternative thief deterrants - wemyss
How about a rubber blow up lielike image of someone who would send you running for cover.
In my case Gordan Brown the stealth bandit would do the trick.
alvin
Alternative thief deterrants - wemyss
Meant to say lifelike but it will do....
Alternative thief deterrants - Pugugly {P}
When in the Landie I am generally accompanied by three Springers
only one of which is a psychotic and bites any human it can lay its teeth into. Excellent, I can leave it parked anywhere, unlocked. Of course there is a notice on the window warning any fool who tries to steal dog, Landie or contents....
Alternative thief deterrents - Paul Mykatz-Tinks
"Of course there is a notice on the window warning any fool who tries to steal dog, Landie or contents...."

Pug.....pardon me for butting in from retirement, but I have a pressing query.

A worthy gentleman, gainfully pursuing the same noble game as your good self, told me that, if I display a public notice warning of my obnoxious dog, and said dog subsequently eats a miscreant, I will be deemed to have admitted my dog is dangerous and I will thus be prosecuted for failing to prevent the ensuing feast, notwithstanding that said feast constitutes natural justice.

Was I erroneously advised, or are Landie-based dogs exempt?
Alternative thief deterrents - Dave_TD
A local builder had his LR Discovery nicked last year along with the two Staffordshire Bull Terriers in the back, from outside a village pub in the space of 20 minutes. Notices up on trees all around the village, reward offered, never found a thing. :o(
Alternative thief deterrants - Dwight Van Driver
Be warned PU for I heard the following somewhere....

Bloke parked his LR90 with two dogs aboard in a deprived area of a certain city whereupon four urchins approached him saying that they would look after his vehicle. Obviously they were expecting a coin of the realm for their service. The driver, looked down on said urchins and told then that the dogs would look after the vehicle. Whereupon one of the urchins said, "Do they put fires out as well?"

DVD
Alternative thief deterrants - THe Growler
Real dog poo might work better....
Alternative thief deterrants - Pugugly {P}
TIC really. The dog is really crazy and I know that I would leave my self liable to prosecution if it did happen to eat an unthinking thief. Technically the beast becomes a "Guard Dog" under these conditions and all kinds of conditions apply legally.
Alternative thief deterrants - Jonathan {p}
I remember reading an anecdote a while ago. Its probably part of police legend now, but its still funny.

A very big and expensive car was habitually parked in an obstructive manner, it was given tickets, which were always paid, but this didn't deter the owner. The car also had a very nasty dog, which prevented it from being moved. The windows were left ajar (so the dog could breathe).

Alnost at a loss, the traffic chap decided that there is more than one way to skin a cat, and proceeded to push laxative chocolate through the gap in the window.

The car didn't park there again.
Alternative thief deterrants - Dynamic Dave
Put a Lada badge on the boot lid!!
Alternative thief deterrants - Hugo {P}
To my mind the best anti thief deterrent is built in in such a way as to become part of the very car you may consider.

Examples include

Fiat Regata
Fiat Strada
Fiat Panda
Fiat Multipla
Fiat Marea
Lada Riva (brick on wheels) - even if you leave the keys, V5 and service histry on the driver's seat. These cars are as reliable as any car could be, but come on - the thief would have his reputation in tatters if he ever got caught.

That horrible little rear engined Skoda - see above

Any Metro that has ever been built - see above, plus most of them only have 4 gears so the thief will have to rev the engine to about 15000 rpm to out run a copper on a push bike.

Anything that looks like it hasn't got an MOT (because you keep trying to get rid of it to no avail), infact any thief with a sense of charity would probably leave a better car parked beside it.

Marinas, allegros, Itals - yes, you get the picture.

Landrover Discovery, as it will most likely break down before the thief gets very far.

From what I hear LDV vans - See above

Vauxhall Fontera - See above plus GM will find a way to void the warranty when it does.

Any new VW - OK they're easy to steal because you can just look at them and the windows will obligingly open for you, but you can always nick it back using the same principle.