When lifting the plastic soda cup to take a drink – as if
through a straw or coffee-sippy-type lid, make sure you firmly grasp the
flexible cup.  Do not rely on the superficial
lid to stay in its proper place - as if grasping the cup through/around the edges of the lid.  If you
do, you could well end-up wearing the contents of the cup and wishing you had
done otherwise.  
AVT (August, 2013)