Mark will wait for his Daddy by the door after we get home from Lisa's house.  He is getting pretty smart at how he manages to get up to look out of the window.  I noticed lately though that he is also working the door knob....hmmmm....may have to put one of those child proof ones on but they are such a pain!  Once he has demonstrated that he can open it though I will have to do something.  Too many things for him to get into outside.  Pinkie looks like a co-conspiritor in this operation!  Pinkie you better keep him safe or you will answer to me!