Kid Signal...

I have decided that there is some kind of universal kid signal that lets them know when their Mom is either A) going to the bathroom or B) on the phone. Sort of like the bat signal...I swear as soon as I am in the bathroom is when they "need me". Right then and there. Of course there are always some very serious problems that need to be taken care of...where are my sandals? So and So hit me...Can I play on the computer? Etc. etc needs that have to be addressed....