Very sad to see . Small minded people will always exist . <| sep |> Aww I feel like they redeemed Dean after he was all creepy and gross and mopey like . <| sep |> if you get in the habit of building diagonally now you ' ll end up with bigger rooms while using less material . as long as two tiles touch diagonally it ' s considered a wall <| sep |> It honestly depends where you live . If you live in an area where lots of people travel for work then it ' ll become less unique . SSNs are distributed geographically . Additionally , this system begs for reuse of ids of old employees , which is a big security nono . You need to have an audit trail that leads to exactly one person . especially in something like healthcare where there can be huge criminal and civil liabilities for the clinichospitaletc if shit hits the fan with a single employee . Best advice is doing exactly what userg 06 suggested . An auto increment is a good way to ensure you ' ll never reuse an id .