101 Uses for your Ex

Use Number 101 : Wheel Chock.

How often have you had to change the wheel on your automobile on uneven ground?
Safety in this matter is paramount, if your 'Chariot of Righteousness' decides to roll off the jack you could suffer an injury.
The obvious answer is to chock the wheels to prevent this, but what to use? If it's something too fragile, the rolling 'Chariot' will crush the item, and you could be out of pocket, or worse, if the soccer finals are coming up, minus a much loved and needed half brick. The solution is to find something useless, something you won't miss, or be worried about seeing under an automobile.
Solution? Your Ex.
The one item in your life that is not only expendable, but practical to use on both a physical and psychological level.
On a physical level, it is much better to chock two wheels rather than one, but if you are like me and only have short Ex's, don't panic, one wheel is safer than none.
As for the psychological level, well, explanations here are probably superfluous?
There could be some difficulties getting the Ex to lay behind the wheel, but perhaps a call asking if they would like to 'catch up' could solve the problem (of course, an offer to 'catch up' 5 km from the King Georges road exit on the M5 might make them a little suspicious).

Next, use number 100, fall guy for a Nigerian internet banking scheme.

Disclaimer: No Ex partners were harmed or ended up under stationary (or for that matter, mobile) automobiles during the writing of this post.

More's the pity.