Grandparents in town

My parents came into town for a visit today. So far Sam has coped with their presence better than I ever could have expected. They aren't complete strangers to him, but as they only visit a few times per year, he doesn't know them well.
When my mother asked for a kiss he went up and kissed and hugged her, then (upon request) to my father as well. They can't believe the difference in his speech and behavior in just a few months and say that his eye contact seems completely normal. Then he asked my mother to watch him play a new game he'd come up with, sliding down the stairs on a boogie board. "Watch me, Grandma!" and "I went really fast!"
Then, when I told him he was crazy, he answered back, "You're crazy, Mom!" then for good measure, "You're crazy, Grandma!" and "You're crazy, Grandpa!"
Thom made his presence known in his own way by proudly walking five or six steps, then collapsing to the floor.
On the not-so-great side, (the bad part being the reason) the co-sleeping arrangement may, thankfully, soon come to an end. My husband watched Sam pinch Thom's nose closed in an attempt to halt his loud breathing. He's going to start rocking Thom to sleep in Sam's room, then putting Thom to bed in our room once Sam has fallen asleep. Let's hope it works out. Sam needs to start sleeping in his own bed, in his room.