When I get on a bus I can't use my phone or my DS because I feel like the germs from the poles and seats and money would get on my devices. And I hate when people touch food without washing their hands. But I can shake hands and open doors without any thoughts of germs. I can let people eat my food (as long as their hands are clean) and I don't mind.
Read more: What kind of germaphobia do I have? If there are different types?