The first rule is training them. You have to handle them correctly for the best results :-D :-D ( photo / image / picture from Kildale's Garden )
Well mine seem to be an unruly bunch that don't want to be trained. They just seem to like 'buzzing' me when I try to take their photograph.
I don't know why the next part, Taking Robber flies has been moved somewhere and not this one. This looked like the right place for them.