Of all things Flies, when he was about 9 weeks old he was laying on the grass playing with some flies, then we hear an almighty scream and couldnt find what was wrong until we turned him over and he had a big green ant attatched to the end of his little puppy bit. took us ages to calm him down BUT he thinks it was the flies that caused him all the pain and now 7 years later he is still terrified of flies.
If outside and there are a few around he will sit on someones foot just to protect his bits, or back into a corner, this is why he is a totally inside dog, and funnily enough he couldnt care less about ants.