"Fetch" is a useful command for lazy owners like me. Can ask Islay to bring this and that, withought having to move! I've taught her to bring tissue paper etc, but thought, how about coins? Won't it be useful... if she could collect find and collect coins on the floors... wow, then I shall check all the vending machines, pretend to just walk while Islay collects.... oh, of course not! (really?) won't it be useful if Islay picks up the coins I dropped?