So...DS #1 has been a great big brother so far, we had almost no upset with the birth of #2 whatsoever, no lashing out at me, DH or the baby, really, I give the kid a lot of credit. Now, however, DS#2 (8 mos) is mobile! Not exactly crawling, but man he can drag himself fast, and what is he most interested in? Whatever his big brother is playing with, naturally. This has wonderfully coincided with DS #1 really grasping that certain things belong to certain people - it's not just this is "mine" but this is mommy's, etc. - but he does NOT like DS#2 messing with what's his. Sometimes DS #1 is happy to give him something else to play with, and sometimes that works, and sometimes it doesn't. Obviously DS #2 is not to be reasoned with at this stage. Obviously siblings are going to have conflicts, but I really want to set the stage now for a good relationship between the two of them and I feel completely at a loss as to how to negotiate this this issue. Anybody got good strategies that are working?