I was curious what atheists say to people who sneeze so I googled it and found a youtube video devoted to this subject. I left the following response since he did ask for other dilemmas
I used to say "Goes in tight" pause and say "Comes out limp" :)
I catch myself saying the German word Gesundheit , which means Bless you. So in a conscious effort to clean up my language of any references to GOD- LOL I find I am forever saying "oh god". I guess if I just shut up it would be great. I have tried to say "Thank you Mother Nature" for that I do believe in.
Somewhere it is written that even atheists yell out "God" when they come. It is hard wired. so to speak