I have one male cat, Jake, who will drink from a water or milk glass by dipping his paw into the glass and then licking off the liquid. We did have a cat who would drink from the running faucet but he would also drink from the bowl if he had to which was most of the time. My other male cat, Romeo, will drink from my coffee cup if it's cool enough and close to the top of the cup. I do cover that with a suacer usually but my DD doesn't always remember this so sometimes she doesn't even drink her coffee b/c Romeo got there first.