Bruiser will drink from sport-top bottles too. He will drink from pretty much anything, actually. He loves licking water off of different surfaces. I think the best time was when he hopped into the shower with me to get at the water on the inside of the tub. I think he also aspires to be a landscaper. There used to be a bush where he is standing. One day I came home from work and there was no bush but a very big mess. We rent, so the plants are now off limits, thus the plastic fencing.