S.S.
At 22 months old the world is still such a new and exciting place. They are learning how to talk and communicate, they are better able to understand things and are discovering so many "cool" things about their bodies. Can you imagine what it would be like to be that age and discover that you can make things "fly" out of your mouth? How about setting up "spitting zones" to satisfy his curiosity and amazement? You could make areas that are ok to spit in, for instance, you could get him a bathroom stool and let him spit in the bathroom sink. The bathtub would be another great spot or the backyard. Eventually the novelty of it all will wear off and he will be on to bigger and better things that will start to freak you out, like ripping off his clothes during a playgroup and streaking through the living room (yep, mine did that!). Just remember that this a time when they are learning about themselves and their world, they are full of great curiosity and it is ok to let them play with that.