Drinking Fountain (a happening)

So, funny story. I just barely posted maybe two minutes ago, but I have to record this experience.

After posting, I got up to fill my water bottle from the drinking fountain down the hall. It has one of those water bottle filler tap thingys on the back of it. Convenient. So, I filled my water bottle.

....

It was yellow. Does this particular water bottle refiller give you lemonade??

I had gotten a drink from this same drinking fountain just a few minutes before. It had tasted rather normal, but then again I hadn't seen the color of the water I was drinking... o_O I looked at it, nervously examining it from arm's length. It looked like it was full of air bubbles. Maybe it was just highly oxygenated and the bottle was slightly yellowish.

I flicked  the neck of the bottle a couple of times and little mists of smoke, gas, brew vapors, whatever it was floated off of the surface. 

I was freaking out just slightly as I walked back to my chair in my well lit, solitary little lounge off to the side in the English building. As I walked through the doors, the color changed from yellow to white. What sorcery is this??! I walked through the doors again towards the drinking fountain. It turned yellow once again. I wrenched my gaze from the bottle for the first time in minutes and looked around.

The lighting in that hallway is very yellow.

I figure it really was just highly oxygenated water reflecting the yellow light of the fixtures.

Crisis averted.