Spiders.
F*ck me I hate spiders.
I'm up at my little lakeside retreat, and since I don't get up here as often as I'd like to, the creepy crawlies have a field day when there aren't any humans around and I always spend the first hour after getting here shooing them back outside...
This particular unwanted arachnid was in the toilet room, and I jest thee not was bigger than my hand.
Luckily, I was already seated upon the throne before I spotted him, so when I shat myself it wasn't such a big deal.