As Trevor learned on his mission. Fortunately, he was able to learn this particular one secondhand. One of Trevor's companions was out on the streets of France, trying to show the brotherly love, when he made the mistake of hugging a "sans domicile" - also known as a bum. Shortly after this incident, he found out he has fleas. They had to fumigate the whole apartment and have everything dry cleaned or steam cleaned, as well as have one of those "special" baths. You know, when your mom uses that word "special" and it's not a good thing.
Not only that, this Elder was too cheap to dryclean his suit jacket, so they went through this whole ordeal only to have the fleas live on in the suit jacket.
But he lived to tell the tale. Moral of the story: Hug a bum, get fleas.