Prawns
Prawns in the radiator grill.

Buy them frozen. Insert their hard, icy forms in between the bars of his radiator. Nobody will suspect a thing.

Then, when he next goes for a drive, the warmth from the engine will defrost the prawns. At this stage, he may still not suspect anything.

But in time - and soon - they will start to rot. Their salty putrefaction will find its way out from under the bonnet, and will simply be enhanced every time he goes for a drive. He may not initially realise that the odour emanates from his car. He may initially assume it's the bins nearby.

But everywhere he goes, his car will leave a trail of the rich scent of rotting prawns. Everyone in the neighbourhood will start to notice the foul stench, like the pimpled, red anus of Beelzebub Himself. Everybody will come to know him as the Man with the Smelly Car. The Car that Smells of Prawns.

He will be mocked, up and down the neighbourhood, for having a Car which Smells of Prawns. He will be SmellyPrawnCarPongMan. The insults will gradually crush his self esteem.

Then you can ask him to move his car.
(LongJohnBaldry, Wed 7 Oct 2009, 13:30, 2 replies)

or
Give him the prawns as a present and ask him to move it nicely
(NuffMuff fucks shrubbery, Wed 7 Oct 2009, 14:13, closed)

Cheers but
I think his Rottweiler/Staffie/whatever it is would find them.
( stopmeandslapme Cometh the hour, cometh your mum, Wed 7 Oct 2009, 18:16, closed)