Our son has recently discovered how fun it is to shout. Sometimes he'll just be running around playing and also shouting "ahhhhh!". Or sometimes he'll shout if he wants our attention and we don't respond as quickly as he would like. We try to ask him to lower his volume and tell him we only shout if we're hurt or upset, but he just thinks it's funny.
This is definitely a behavior we don't want to encourage - any other suggestions for how we can get him to stop doing it?