I have discovered that my otherwise-excellent new laptop backpack is not very rain-resistant. I discovered this two days ago when I got stuck at a bus stop with no shelter in the first heavy rain we've had for months (literally the first rain at all for months, and it was serious rain). The upshot to this is that my work laptop has water damage now. :|
At least my employer's attitude towards this is "eh, shit happens", but I still feel really self-conscious about having destroyed a laptop.