And if not, why not?
I'm going out today to have lunch on my own. Have a workman here and want to just concentrate on a couple of emails and err Mumsnet a bit maybe 
I mentioned it to a friend and she was horrified (slightly exaggerating there) that I'd sit there like a right old saddo on my own, eating. It's nowhere posh - think along the lines of a generic chain restaurant
So - would you take yourself off and have lunch on your own?