So, the idea is to take a photo every day on the way to work from the same position.
Anyway, check this out: http://www.pldm.co.uk/timelapse/testbed.html
This little dude was just doing his thing whilst busy feet walked over and around, ignoring him. I saw him though.
The link works now: http://www.pldm.co.uk/blog/paperCup.html