If I worried about whether or not everyone's chopping board was clean or not, I would never eat anywhere! lol

Seriously though, I am more lax about these things - I eat poached eggs, and ham from the deli, although I do ask them to slice it fresh for me, I eat in restaurants and I eat rice I didn't cook, I reheat food...
But then having worked in the hospitality industry, I have more faith in the fact that people in all food businesses are very good about health and safety, and trust the fact that they have cleaned their boards correctly.

All this talk of sushi though has made me crave it, so you know what I am having for lunch today! lol