This is the greeting I received from a 5th grader today:
Hello baby! Chocolate kudasai!
'Kudasai' means 'please', but it is typically used to give commands.
This only proves that the length of a school vacation is irrelevant. Students will always forget the material.
My reply...
Good morning! Eigo please!
'Eigo' means 'English', but sounds like something you might command someone to leggo of.