I can't be doing with all this feeling sad about things. About inanimate objects and about nature programmes and when I hear music and anything sentimental. It seems as though a piece of me has been reprogrammed to blub at the slightest opportunity and it's very undignified and costing a lot in tissues.

This evening we watched an ancient film called Silent Running. It was made in 1972 and it's about a world without forests and plants, a world where the only ones left are in bio-domes in big space-freighters somewhere near Saturn.

(Don't read any further if you don't want MASSIVE spoilers, like..er..the ending)

Then Earth gives the call to blow the domes up - they can't afford to keep them running anymore and any hope of repopulating the Earth with the plants is long gone. But one crazy dude has been looking after the forests in the bio-dome for eight years and he decides, "No! I will not blow these forests up!" So he kills off his crew and sets to work looking after the forests with these three droids called Drone 1, 2 and 3. But then one droid gets swept away as the freighter travels through Saturn's Rings which is quite sad because the drone's leg gets left behind. But the worst bit is that in the end the crazy dude loses it and decides to kill himself, but before he does he sends the bio-dome off into space with Drone 3 in it, looking after all the plants. But he doesn't let Drone 2 go too even though they're friends, because Drone 2 is injured and can't help Drone 1, even though he could still have been company. So Drone 1 goes off into eternity on his own.

Now I write that it doesn't seem so sad, but believe me, it's heartbreaking. And that's what I can't stand. Lions in the wild killing elephants is devastating, and baby penguins dying, and lonely droids and sad things on the news...

I'm becoming a liability with all this over-feeling.

And I wish I could just switch off the bit of me that felt sad about things like that, about nature and inanimate objects. Just cut it out. Because I wouldn't mind looking at the bit of brain left behind on the table, not if it stopped me from feeling sad all the time.