no flies on me ?

i went out into the garden this morning to top up the bird bath with water.
within two minutes i was invaded by thousands (literally) of little midge like flies. it was like one of alfred hitchcocks scary movies. battering my self to try and get rid. came back into to house betty chased me back out the front garden clouting me with the newspaper , i cleared my front but my back still full of them.
two guys next door but one, fitting new windows for a neighbour had strange looks on their faces wondering what was going on
its the last time i go out with a bright yellow shirt on, they thought i was in the tour of france