Joey rather argumentative this morning - I lost my temper - and this evening, Anne lost hers.  Not sure why - he did get to sleep late last night, had a long day (rehearsal for the school play after school) and then what seemed to be rather a lot of homework.  Not a great combination.  But also we have started giving him special supplements which are supposed to rid his body of heavy metals.  We did it before over Thanksgiving, and that coincided with a deterioration in behaviour.  So maybe that is the problem?  We will need to plug away and see what it is.