Exciting autograph sessions, sibling rivalries and the best fan interactions of the past week

For young fans, the prospect of coming face-to-face with your favorite baseball player is the stuff of dreams. And for the lucky ones at the ballpark on a given day, that dream becomes reality -- and, sometimes, tears of joy. 
As this past week has shown us, these scenarios yield plenty of smiles, happy faces and newly prized possessions in the form of autographed caps, baseballs and other memorabilia.
Of course, another aspect of going to a game is squabbling in the seats with your brother -- maybe over who gets primary possession of that new autographed item?

Watch the clip atop this post for a round-up of more of the week's most entertaining fan-player interactions.