How do people feel about religious families/individuals coming into a non-religious home and praying before a meal? While I am a guest in someone's home I will be as respectful as possible. However, this happened to us recently and we felt extremely awkward having grace said in our home when we don't follow their belief system. We still aren't sure if we think that their actions were disrespectful, or if it's on us to make our guests comfortable... On the one hand it seems so harmless, but on the other, it really did make us uncomfortable in our own home.
This happened to us on Easter Sunday. In this particular case there is a lot of hypocrisy and obnoxiousness involved, so I was particularly disturbed, but didn't say anything as it's just my father's latest fad anyway and next time there will be something else.
We only know one family who does that on regular basis and while I don't like it very much in my house, as it implies that their Christian values "trump" my agnostic values in either house (or worse, that as an agnostic I don't have values), I don't say anything.
I've decided that those three seconds aren't important enough to create an awkward situation, but should it ever go any further than that (like discussions, promoting their belief to our daughter) I will step in.