Try this fun and entertaining game. Wrap a rubber band around the handle of the sink sprayer. Try not to jump guiltily when someone, like, say, your wife, walks into the kitchen.
Instead, without giggling too much, say something like, "Honey, will you help me wash these pans? Can you do that one in the sink?"
Try not to fall down laughing when your wife turns on the sink - and the sprayer you have so cleverly stuck in the open position.