I have my work cut out for me

Last night was the 2nd night we sent to Caleb to bed without a pacifier. He's four - it's time and we told him that before his 4th birthday but have been lax about the follow through. Then he started pooping in his pants after months of perfect potty. We told him if he pooped in his pants again, the "cork" would go....you guessed, he did...it went. Scott put him to bed last night and when I went to check on him, I found his door locked. Not a good sign. I unlocked it and peeked in to find that he was sleeping peacefully with a cork in his mouth. Yup, he had a hidden cork, for parenting emergencies such as these. He's FOUR! I'm in trouble.