Photocopying tomfoolery
Should you be entrusted with the dubious honour of photocopying teaching material, it is incumbent upon you to make asinine alterations guaranteed to cause a giddy head rush.

Your starter for ten: a highly childish assault on the periodic table achieved by inserting the word "Jimmy" after the symbol for copper ('CU...Jimmy').
written by an*nymo*s us*r, excluded pupil, approved by Phil

But bizarrely, not the letters n and t.
written by an*nymou* u*er, approved by Log