have a thing about

“I have a thing about mountains,” Dr. Singh, now 70 and retired, said during an interview in his apartment in Fort Lauderdale, Fla. “To me Hokusai captured the essence of the mountain.”

Something like, “Excuse me, I just have a thing about toes — and your toes on my armrest is really freaking me out.”

“People have a thing about feet,” DeRuvo conceded.

“I have a thing about gorillas and monkeys,” Jamgochian told me on Thursday, her Shiba Inu, Mia, alert at her side.

Dear Amy: I’m a 5-foot-9-inch woman, and it amazes me to hear how many people have a thing about height: The guy always “has” to be taller.