I'll try to keep this short: a friend and I have plans to attend a UU service this weekend. I saw pictures on Facebook of the congregation with their hands on each other's shoulders, which makes me really nervous because neither my friend nor I tolerate physical touch well. If we sit and the end of a row, would it be unforgivably rude for us to say something like "no thank you?" Is there any chance of us passing on this without making a scene?