How many LibDems does it take to change a light bulb?

There's probably a long winded joke in there (10 people on the executive to delegate it to the 12 on the policy committee, before the conference committee decides that the motion can go forward to the 1000+ federal conference delegates).
Or just the one: Our leader.
Which reminds me that I too should get a stock of energy efficient light bulbs ready to replace ones that fail.