My son had his second birthday in April. Two or three times a day he yells "tee tee"! and takes his diaper off and goes and stands at the potty. Sometimes his diaper is dry and sometimes I can tell he has just wet it. I don't want to push him but I want to take advantage of any opportunity! He goes through spells where he will come get me when he is dirty and then sometimes he will stay dirty until I discover it. Who knows? Any advice?