Red Toilet Bowl Water? So, My boyfriend and I went out of town for a week,...

So, My boyfriend and I went out of town for a week, and when we returned to our apartment our toilet water be red. Now we have a roommate, but he's a guy. he could have used our toilet and not flushed, but I don't take in why it would have turned red. Any Ideas?
Why does my washer not win adjectives the...
Answers:    Ewwwwwwww...bacteria within toilet water turned red? Uh.rust? I don't know, but I'd flush it! Good luck!
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