As a non Christian i have (of my own accord) been in volunteer jobs through St Vincent de pauls and the Salvation Army. Of course, none of my fellow co-workers knew i was not christian because i chose not to tell them and just get on with my job. I've found non-christians don't work in those two groups, and as loving a message as they tend to send out, the churches and places i've been to did not like atheists and pagans. It's just so funny how as long as you go along with someone else beliefs and nod along and don't bring up your own ideals, that everything is fine. But once you speak up, you get attacked. Now that wasn't me complaining about anything, but trying to make a point. Now i won' start ranting about the whole certain 'religious people telling non religious people they can't possibly be good or moral without a belief system', because that's a whole new thread!
But once people start approaching me in the street or while i'm shopping, and attacking me with their beliefs, THATS when i get angry. A billboard or poster is not an attack. Having a mormon or born again come up to you (true story) and TELL you that you are lost, you NEED to find god or you will burn in hell (oh i find that one such a loving line) that's when it's an attack on other groups. And yes, my family is of mixed beliefs so i'm not pulling this out of my behind.
You know, if they guy has a major issue, it's fine that he spoke up about it, but an entire company shouldn't have to bend to the wishes of one employee, employees are generally replaceable.
And i don't see how a sign saying 'there probably is no god' is more offensive than a sign saying 'there is a god'. One side v another side imo.
A bus driver will come up against drunk, abusive people, loud children who swear and damage property, aggro old ladies who are extremely offensive and always think they're right. And these things are going to be easier for him to deal with than a banner that is supposedly attacking his faith, a banner he probably won't see for however long his shift lasts? Why be a bus driver if you aren't ready to deal with every day drama.
Yes i can see now this post is probably not going to get good replies or wil be seen as irrelevent, but i'm willing to take the chance.