If it's only been urinated in then it should be reasonably sanitary. If it's been pooped in I'll choose to drink antiseptic, take the tiniest possible sip, spit it out, and then try again until I get a urine-only one.
Where should this comment appear?
This pairing only
Whenever "1/3 of your 20 closest friends and family members are ..." appears
Whenever "Drink anything you want, but you have to drink from ..." appears