Your bosses insist on you instilling good manners in their children then you have two weeks off and you come back to little brats who appear to have forgotton the word please exists and that "I want xyz" is the way to ask for things!
Similarly they want you to play educational games with them and then rearrange the playroom (despite you having spent half a week while they were on holiday sorting it out) getting rid of all the main things we use to learn in play eg. The proper denomination coins that we use to work out change in the play shop, the whiteboard we practice writing on etc.
Thirdly their youngest is 4, starting school in 2 weeks time yet he hasn't got himself dresses or wiped his own bottom in the two weeks you've been off because they see him as the baby and do everything for him! The teacher can't get him changed for pe and wipe his backside for him- its called growing up and gaining independence Grrrrr!