One time, a minor celebrity who I am a fan of, called my place of business. I spoke to them, we did business, and I did not act like an annoying fan. It was all business. They did give me their cell phone number as part of the business we conducted. I put that number in my contacts on my personal phone. (I know, that wasn't right, but...)
(cont)
I sold a rare-ish sorcerous tome to Guillermo del Toro's production company for $1400 one time.
I have never called or texted this person, but I often wonder if there will ever come a time when I need to call them, as part of a wild wacky adventure that I have embarked upon? I look forward to that day!