Does it only become disgusting if somebody sees it? Surely everybody picks their nose at some point, right?

Right?

I never do it in public, as I'm well aware of how gross it looks and how appalled I am if I see somebody across from me getting right in there and digging out a crusty treat

Eating it, on the other hand, is SICK and WRONG. And don't give me that "where do you put it, then?" rubbish, it's all about the roll n' flick. I have a friend (Dan) who's 22 and openly picks his nose and eats it. It's... hideous