Over the last three weeks I've hardly been in the mood to socialise or make lots of phone calls. But very occasionally - very occasionally it seems - I do receive calls from my friends.

But somehow they always manage to contact me when I'm on the bloody underground. On average I must spend less than half-an-hour a day out of mobile phone signal range, so it would be pretty unlucky you would think if I always received calls during this time. And my journeys are always at different times so it's not some time-based annoyance.

During these three weeks I have answered a truly pathetic 23 incoming calls; with five having got through but for one reason or another I have missed. Meanwhile the number of times someone had attempted to call me whilst I have been travelling on a tube train is eleven.

Annoying. Thinking about it - I spent a week convalescing at my Mum's during which I spent zero minutes on the underground. So make that makes seven per cent of my life over the last three weeks that has been spent on the tube. And that is when about a third of calls to me have been made!

Gah!

Fascinating stuff that the entire internet should know about I'm sure you'll agree.