Some things that have happened to me over the years:
* Got the Spooks called on me when out in a park one night in Sydney's eastern suburbs sorting out a new truss dob. Coincided with the first lot of "be aware, not alarmed" dob in a terrorist neighbour crap... flaming Spooks go all out "James Bond", cops would just come up and ask what's going on and ask to have a look.
Tick. Had the cops but never the spooks.
* Had one bloke get crook on me one outreach night, declaring that my 5" SCT "wasn't a real telescope -
I know what a real telescope looks like!"
Yep, my opinion of SCTs too. 
* Another outreach night, another bloke accused me of being a fraud when he saw Saturn through the same C5. He said I "had put a picture in
that thing!" Closest I ever got to fisty-cuffs in astro!
Tick. Also been accused of using a picture. Seeing was very good and the tracking was spot on. No fisty-cuffs involved, just a giggle. I took the mistake as a compliment.
* One outreach event was at Bear Cottage, the childrens' hospice out Manly way. I discovered the power of video astronomy that night. I also saw how fortunate I was as a father to have to healthy kids. When I got home that night, I cried inconsolably for an hour. Definitely my outreach highlight of all time,
I can see how that experience could be good and bad at once.