I was in a swimming pool in someone's back yard. The yard was cluttered with vaguely junky stuff-- a broken swing set, discarded toys. GS (from high school) and I were trying to train a dog to be a little more cautious about sniffing things that were floating on the water or that might rise out of it. I had a U-shaped pipe with curved ends like a periscope. You fill it with water and when the dog comes to sniff one end, you spray it by blowing on the other end. But it didn't work. The pipe was too big and I didn't blow hard enough. JM (from work) came out of the house and asked us something [I don't remember what anymore], then GS and I went inside to clean up. When I came out of the bathroom GS had become DB (from college). He was sitting on the bed buttoning his shirt which had straps and harnesses. "Remember the prophecy about [something I don't remember]?" he said. "Well, don't be buying stocks in [something I don't remember] anytime soon."