The Weekend is almost here...

[Chevellechic]

Which is wonderful because it means I get to see my boys.  And god knows how much I miss them.  But, it also means a weekend of ripping my hair out because my oldest son Daniel is a major discipline problem.  I know he's only three, and defiant behavior is to be expected, but he goes above and beyond.  I'm not sure what to do about him, because everything I do when he's here as far as punishments go, it's all undone when he goes home on sunday, because they DON'T punish him when he does something wrong.  They laugh at him...  Any advice from anyone?