Wow, wouldn't that be a shock if a stinky big necked buck joined one at the dinner table.
We don't feed deer. We do provide water for the birds, but the deer seem to like the taste. There is a creek about 2 blocks away, but the deer seem to like our water. The covenants prohibit fences around our property.
One thing we have going for us is the glass on the opposite wall of the house beyond the dining room window gives a back light. Another would be the fact the deer have to kinda look up at the window glass, and so probably aren't so likely to see their reflection. What they should mostly see is a reflected sky.
We hope we never have a deer in our house.