Oh Christ. Every bloody thing.
The wicker dog bed - it creaks slightly if he goes near it. Won't sleep in the same room as it, let alone in it.
The plastic dog bed - he once got in it with much persuasion and it moved slightly. Nope. No more plastic bed.
The dishwasher (whether it's on or not)
The hoover. The switched off Hoover. Won't enter the room it's in. Will whine if left in a room with it.
DP's friend saying 'squeak squeak'. Terrifying.
Our cat. He is pretty scary though.
Hot air balloons. Oh my god, the hot air balloons. Just the sound of the flame thing though. We have one set off in the field near to us fairly often early in the morning for the sunrise, and he will sit there a quivering mess.
A duck ornament. He has to bat it over as he walks past just incase it became real overnight.
The moon if it's bright. Has to be barked at.
Moving furniture slightly. Or moving rugs slightly. Ruuuuuun!
And yet, he's not scared of strangers at the door. He's not scared of DP's gun. He's not scared of big farm machinery. He's not scared of big dogs. I mean, all the things that could actually cause him harm. Nope.