If you ever manned a night drop zone in the borderlands of southern California it's very dark. The only light is the impact point in the desert. Lots and lots of arachnids come to see what's going on. I sat on the roof of a Humvee with lots of insect repellent. I was told that they were mostly docile.
Rumour has it that when Prince Harry's det returned to Wattisham, all the unaccompanied baggage was left in the mess where the cosy temp woke up all the black widow shpiders hiding in the kit. Nice