Leprechaun tricks

This morning my kids wondered if our milk would be green since last year it was green on St. Patrick's Day. I told them that our milk was white and they could see it since it's in a clear container. Still they thought it might turn green. Well when they poured the milk it was white but when I poured the milk it turned green when it got poured into the cup. The leprechaun somehow tricked us again this year.
As a side note, the boys started soccer this week. The two older boys are on the same team and Big T. is on a different team. It should be a fun year - at least we only have 2 teams and 2 sets of practices instead of three like we've had in the past.