I've always gotten a laugh out of Vicki's 4 classroom rules, 

one of which is "NO fingers in nose."  

The other 3 (which escape me at the moment) are a lot less memorable....

When I stopped in last week, she hadn't yet made up a new copy for this year, so I have no picture.  What I do have is Friday's PICKLES comic strip that <g> reminded me of Vicki's 'important' rule.

Now that school is back in session, 

I'm betting most (possibly all?!?) teachers can relate to this recent FB post:

I worry that what you just heard was "please share an irrelevant and out of context thought with the class now." What I said was, "does anyone have questions about this slide?"