So David Cameron has had his famous bike stolen.
http://news.bbc.co.uk/1/hi/uk_politics/7523144.stm

I saw what was left of a bike the other week at a bike stand on Albany
Road - a very thick cable lock had been cut through but the D-Lock was
still in place holding the frame - every other piece of the bike had
been removed. I advocate using two types of lock because I have read
that the tool for breaking a cable lock is different from the tool for
breaking a D-Lock and its inconvenient for a thief to carry both. In
the above case two locks was insufficient.

If I go to Tescos on City Road and some other places it is impossible
to find anywhere to use a D-Lock as the street furniture is too big.
I've reported City Road to the council cycle officer but I don't think
he is particularly interested. In such cases, if the bike is going to
be out of site, I use the cable lock to attached to the lamp-post (or
some other item) and I put the D-Lock through the wheel and frame -
better than nothing.

About a month ago - I saw some rough looking blokes near City Road,
wheeling a racer bike around that had no front wheel - I bet that it
was nicked. Maybe it was locked up by the front wheel only ?
Some bicycle racks make it hard to lock the bike up using anythin but
the front or back wheel, in such cases I use my D-Lock to connect to
the stand and then lock my wheels together using the cable lock. Its
not always easy as the cable lock fights hard to resist.

Recently I saw a hole where a street sign-post had been removed, it
didn't look like a professional job and I wonder if a bike was
attached to it before it was removed ....