Walking along the corridoor this morning a huge long-legged spider (looked almost too big to be native) eased itself round a door frame. Going up the stairs, I stepped over a huge bluebottle dead next to the stain from yesterday's tea spillage. Later, in a different corridoor I walk past a strikingly similar spider, this time dead. However, when I go upstairs again, the dead bluebottle has disappeared, but there's one of similarly intimidating size on the ceiling, alive. Looked like. Life and death in the wrong order.

Sanity briefly restored by soaking my hair and sitting by the fan. How much heat do we lose through the head, anyway? According to Google, it's 30%, or possibly 40%, 40-50%, or could be over 50%, up to 70%, 50-80%, or even X%.

The water from the cooler tastes of tin. Or maybe it's my mouth.

Stop what you're doing and play with this interactive kaleidoscope! Or don't, if you prefer. It's colourful.