Simple solution here. I'm trying to be as objective as my 18th Century Liberal self can be..
POST THE RULES !!!!
No smoking, No spitting, No peeing, No chewing gum, No Singing, No Dancing, No Kissing, No Intercourse during daytime hours. No demonstrations without a D.C. permit, No selling or soliticitation.
No more than 30 escorted children at a time in the monument. No Tee Shirts with offensive messages as defined by D.C. Code 14.6 Sec B, Shoes and Shirts required. No unescorted minors, No pets, No pens, markers, paint or other materials allowed. No guns, No loud music, No cell phone use. No posters, banners or placards.
Let's just stop there.. But I think that posting ALL the rules and not using your JUDGEMENT MUSCLES is gonna dramatically increase the time it takes to tour the monument just reading the fine print..