This is a well hydrated generation.  We have a small table in the hall outside one lab that works well ( and serves as a friendly reminder) that I like better than the row of bottles lined up outside other labs like so many bowling pins.  I think students can get the hang of it if you can get the instructors to apply the rule consistently.

On Apr 27, 2016, at 1:33 PM, Debbie M. Decker <dmdecker**At_Symbol_Here**UCDAVIS.EDU> wrote: