"Dear Dr. Sniffington, is it safe to lick a fire hydrant?"
— Curious, 5th & Main
Dr. S: That depends entirely on the hydrant. I tested eleven hydrants downtown. Ten were a no. October's Hydrant of the Month was, frankly, a revelation. Always lick the hydrant of the month, and only the hydrant of the month.
Safe to lick? Yes (October only)
"My friend puts grease on everything. Doors. Shoes. His sandwich. Is it safe to lick?"
— Worried in the Industrial Park
Dr. S: Gary, we know this is you. The return address is Gary's Grease. No, it is not safe. I licked a sample for this column and I can now hear colors.
Safe to lick? No
"Is it safe to lick a calzone that has a hole in it? Asking for me. Tony."
— T.C., signed with a little drawing of a calzone
Dr. S: Tony. Absolutely not. Not after what you told us on the air the hole was for. I have asked the station to forward all future letters from you directly to the prayer line.
Safe to lick? Absolutely Not
"I listen to 101.1 The Butt and I just got my cheeks clapped. Is that safe?"
— Name withheld at listener's request (we have caller ID, Cmann)
Dr. S: That isn't a science question. That's the station slogan. But as a doctor I'll say this: stretch first, hydrate after, and do not call in about it during Science Hour again.
Safe to lick? Hydrate
"Is it safe to lick the waffle maker at the La Quinta?"
— Anita Room
Dr. S: Surprisingly, yes. The La Quinta cleans that waffle maker hourly, mostly to keep their hands busy between calls from someone who shouts LA QUINTA at them. Lick freely. Leave a tip.
Safe to lick? Yes
"Is it safe to lick a nine-volt battery?"
— Iregretjumping
Dr. S: You already did. I can tell from the handwriting. The answer is "once," and you've used it.
Safe to lick? Once
"Is it safe to lick the studio microphone?"
— Lil' Studio Dog, Intern
Dr. S: That microphone has been within six inches of DespicableDogs, Ron Hu and four hundred coffee cups. I swabbed it. The swab left the building on its own.
Safe to lick? No
Have a question for Dr. Sniffington? Send it in and pick "Contest question," since we never made a "Licking" option.