Later as things were calming down and the kids were watching TV, I went down the hall to use the rest room and saw their "projects" adorning the doors to their respective rooms:
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Upon closer inspection I saw this on Emily's door:
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For those of you who cannot read Kindergarten "phonetic" spelling, the sign states: "No girls, only boys, girls stink". Now he has done this knowing that Ainsley sleeps in his room, but I think the real message was for Emily and possible Mom who constantly goes in to tell Matthew to pick up his Legos.
The message here is Dad is the only one, by decree, allowed in all rooms of the house (although in another sign he states "No DAD")... we'll see how long this lasts. Dad might have to just start working longer hours... at least until we run out of tape.