Could I Be Any Prouder?

This will be a short post...not much need for an elaborate explanation. Twerp #1 has found a new talent. It started out as making "farting" noises by laying on his back with his hand behind his knee and then pulling his knee down. Great. He then "graduated" to making the same noise with his hand under his armpit and pulling his arm down in a rapid motion. Tonight, I'm proud. He just came up to me and said: "Mom, I can make that same noise with my neck!" He put his hand under his neck and quickly made a hard nod. Sure enough, that special noise came forth. Boys and 2nd grade. Disgusting. I have to try really hard not to laugh...don't want to encourage this "stage of life."