Dr. Know To recoup the increased cost of curbside composting, could I use my green barrel as a toilet? All my human waste is 100 percent organic. I can even mount a toilet seat on top of the green can for e   More

Dr. Know Metro accepts used oil for curbside recycling, but they insist that it be in a transparent container, which rules out any motor oil bottle I’ve ever seen. Why can’t we recycle used motor oil in    More

Dr. Know In honor of Portland’s chrysanthemum season, perhaps you can tell us: Why do some cut flowers/bouquets seem to die immediately? Is there a trick to make them last? —Tina S. I have the same prob   More

Dr. Know Last winter, we endured greater-than-usual rainfall because it was a La Niña year. Now I’m hearing that this year will be more of the same. Where’s El Niño when you need him? Aren’t they su   More

Dr. Know With all the vegans in town, I am a little concerned about my oral sex life. Plain and simple question, do vegan chicks swallow? —Dustin C. I gotta say, Dustin, something about your letter gives me    More

Dr. Know There’s a red sign with a “U” on Union Jacks. I’ve heard it’s a warning that the building is unsafe to enter if it’s on fire. How do they stay open if they’re unsafe? I love UJs, but I   More

Dr. Know Was Jeld-Wen Field designed with only two water fountains in order to boost sales of bottled water? The line for the fountains is agonizingly long, and it’s slow because everyone is filling up bo   More

Dr. Know I work in a building that has one of of those automated defibrillator stations. My co-workers aren’t exactly medical geniuses, though. What happens if I faint and somebody decides to zap me? Can j   More

Dr. Know I often see kids swimming in the Keller Fountain, which makes me nervous for their safety. I confess that it’s also annoying to deal with screaming kids on my lunch break. Is it legal for people t   More

Dr. Know I was late to my restaurant job Saturday because the Hawthorne Bridge was closed for a private party. Really? The Fremont and Morrison bridges were closed, too. Can I close a bridge for, say, a pie   More