All my life, I have been one of the most risk-averse people imaginable, which is probably why I was a very successful 'risk assessor' back in the day when I had a 'real job'.

I joke that I have a fear of being electrocuted, so God made me an engineer in the electricity industry.

I joke that I have a fear of drowning, so God made me a Baptist.

I also have a fear of 'edges' - I am that person who dutifully stands well behind the yellow line on train platforms, and props up the wall in Tube stations (island Subway platforms in Glasgow are a nightmare - I joke that God in kindness made the Subway stations I use (with one exception) those that don't have island platforms).

In contrast, I have no fear of heights, will happily walk across glass walkways, and enjoy the view at the top of bridges, mountains and high buildings.

So this year I've decided to sign up for the 'Zip Slide the Clyde' challenge on Saturday 16 June.  Step off an edge, go over deep, cold water, and admire the stunning view!  All raising a few quid for a really good charity.  A great blend of terror and exhilaration in prospect - good job I have a few months to prepare myself!!