Little alarm in my head

I told Collin last night that I had an alarm in my head that goes off everytime he gets out of bed.  He said he was quite enough that he could sneak out, but I told him that my alarm goes off when he leaves the room and at night when hes supposed to be in bed is the only time the alarm works- so during the day when he is being a spy I can't see him or hear him but at night it goes off.

I forgot about it until this morning when I was taking my mom to "work" (volunteer at the distribution center at BYU). 

I told Collin- Mommy and daddy are SOOOOO proud of you for staying in bed last night!

You did so great! We were talking about how great you did last night when we went to bed, and we are so happy!

Collin said- Thanks mom! Ummmm, can you lean back here so I can take the alarm out of your head....?