What are you and your horse afraid of?

Now I'm really ashamed say this but at 5am this morn I had a rat the size of a small cat charge at me and brush past my feet (even though I jumped pretty much to the roof) as it made its escape into a rathole I happened to be unfortunately standing in front of and I screamed like I was being murdered.. not once but a few times. 3 I think... I was so traumatised I started sobbing. I have never been so freaked... aside from a spooky encounter which doesnt fit this catergory :) I dont mind being charged by big animals although they get the adrenalin going I feel more confidant standing my ground to a naughty horse or my horned playful cow but this rat unnerved me like nothing... I cant believe I started sobbing :) My horse is not too bothered by a rat...but he has a phobia of kangaroos and wallabies... cant say I blame him they just jump out from nowhere and from now on I am going to be alot more understanding of his fear ;) What scares the crappers out of you and your horse?