I fitted a load of these recently (we've got cats and dont want them getting out) - http://shop.windowrepairshop.co.uk/VBH-Window-restrictor
The UPVC windows were straightforward albeit awkward due to access (leaning out the window trying to drill into the edge of the frame).
There are...
You all know that "road tax" was abolished in 1937, right?
To summarise:
Some cyclists ride like muppets.
Some drivers drive like muppets.
Consequence of someone riding like a muppet - some poor driver ends up having killed someone for no fault of their own.
Consequence of driving like...