She lives with me and my wife and our children. She’s completely blind but knows our house well and finds her way about, in part, by lightly bumping into things and then changing directions.

She has a great sense of humor and thinks the nickname is funny, as do our kids. (I don’t call her *Roomba* all the time, only sometimes when she is navigating around the house.)

But my wife hates it, and says I am being an A-hole.