Someone on Reddit posted a photo of a sign their boss put up announcing a new rule: For every minute you're late to work, you have to stay an extra TEN MINUTES at the end of the day. So if you're two minutes late, 20 minutes.
Source: https://www.reddit.com/r/antiwork/comments/v945p0/shout_out_the_worst_place_i_ever_worked_minimum/