Luckily, my wife is on board and we are slowly increasing our stashes. We both had some grandparents that made a living off the land; canning, drying, etc. She's a 1/2 country, 1/2 city, so i try not to burn her out on it. I am always glad when she tells me, that we should get more of this or that, and i let her know that i already have more of it than she knows. She is ready to pack up and head to the country when the SHTF.
As far as people at work, I do not generally disclose my preps, until i am sure that they do about the same. Even then, i do not disclose how much i have. Why make myself a target later? i do not prep so that i can feed the masses. Most people at work would not understand why i need so much ammo and i would waste my breath to try to explain.
Funny that FROZENNY mentioned Boy Scouts. I was the one who carried 40-50 pounds in my pack on the ten mile hike while everyone else was pushing twenty at the most. However, by the end of the day, everyone had plenty to eat, mainly because i was not stingy with people who came unprepared. I am still the guy who carries a few extra ponchos instead of just one for myself. No matter how little i have, i am willing to split it. But, when i have to split my family's food because some other jerk did not prep, i will be a little more reluctant.
When people try to crack on my preps by saying that they are coming to my house, i usually shut them up with "If you are not BRINGING food, you ARE food!"