Hi, Wandering!
It sounds like you work with the public like I do. I am a personal banker at a very busy bank. At any given moment, anyone from a millionaire to a guy working at Burger King may come stumbling into my office and start spouting off God only knows what sort of nonsense!
I am a Christian, but I also know I don't have all the answers, or even most of the answers, about God, eternity, salvation, and life in general. I also believe that God meets people where they are, and relates to each of us according to the personality and gifts that He gave us - so different people have different expressions of faith. The last thing I think I should be doing is trying to judge another person's soul.
So it really, REALLY bugs me when anyone - Christian or not - starts pushing their own set of beliefs on me in a professional environment. I find it just as irritating when a Christian starts trying to convince me that I need to get SPIRIT FILLED and PRAISE GOD SISTER yada yada yada as it does when someone sits down across from me and starts spouting off about what a great guy Ted Kennedy was (well, actually I've never had that happen, but if it did, it would bug me).
It also really gets to me if someone starts saying, "Jesus F-ing Christ, I just can't seem to balance my checking account!" while they're sitting across from me reeking of stale cigarette smoke.
I guess my point is this - gooberism is apparently rampant in today's society. Guess we better get used to it and have our goober antenna up.