Personally, I believe that some sort of grille should be welded to the top of the cup to prevent this sort of activity.
Sure, who's going to drink out of it now?
Sams in the McHugh household ! And my wee dog got a chance to sit in it! twitter.com/MarkMcHugh1/st…
— Mark McHugh (@MarkMcHugh1) October 1, 2012