Good question...I've been wondering how this will work when DH goes back to work and my mum goes home. DS 'needs' someone with him at all times.. I don't think it'll be an issue about who gets left, as DS follows us around 100% of the time! My thoughts are that DS2 needs to take priority, but DS can get very upset very quickly and if I'm trying to settle DS2 for example, DS could make it near on impossible if he decides he should be #1....