I worked in an office building that wasn't well heated. As you observed, the women all plugged in a heater under the desk. That was outlawed when fuses blew and destroyed hours of work on software with a short fuse deadline. Dumping power to all the servers and desktop machines is bad. Especially when you're paying $200/hour for the software development work (times the number of developers whose work was trashed).
Women need heaters to keep warm because they starve themselves in order to be attractive to men.