Be ready to adapt, improvise and overcome mental stumbling blocks! I may also throw things at you.
Jerry Springer doesn't live here.
In the event of an undesirable occurrence let Mr. Klapper handle it. You don't need to pile on the situation your negativity or desire to make someone feel lousy.
Don't step on my mop!
Interrupting class with unnecessary conversations or wanton silliness and stopping me from working is just like just like stepping on the mop of a custodian.