Same here. Quite a long time ago I got a take-home assignment. It's about setting up a router on a linux-based machine. I was going with a design that focused on maintenance and understanding, so I decided not to use iptables directly. After a few days I gave up, because there was an issue with the upstream distribution that I was not aware of. I actually had a very good setup after the _deadline_, but it's too late.
I would never do take-home assignment again =))