In reply to Martin W:
> I'm assuming that the perpetrator doesn't actually harbour a death wish against all cyclists, and thought that this would be "a bit of a laugh" - like the inadequates who seem to think that dropping rocks on to passing traffic from motorway bridges is "a bit of a laugh".
>
> Do people really have no concept of the possible consequences of their actions?
Unfortunately I think you are wrong, and I also think you would be surprised at who it was if they ever catch them... yes, kids might think it was just a laugh, but this is unlikely to be kids. This is much more likely to be an adult, as is supected in numerous other cases like this (some of which have resulted in much more severe injuries) unfortunately we'll never know unless one of the cretins tweets about it to boast.
I would think the person that did this knew exactly what the consequnces would be - an injured cyclist, and the perpetrator getting a way scott-free
numerous cases reported around this area (Surrey), many suspect pedestrians that have been scared a bit by a bike a few too many times, dog walkers ramblers, unhappy land owners etc, nobody really knows, but from the various materials used to do it, it's unlikely to be just random kids - they aren't organised enough to go and get fishing twine of the appropriate strength required etc
There's a thread on here somewhere from last year - think a poor kid got garrotted and hospitalised.
Having said that, it pay's to keep your eyes peeled when out on your bike - I got pulled off my bike earlier this year by a vine that caught me under the nose (bloody painful, but better than round the neck!)