Odd colonist behavior

[dd0029]

I don't know that this is a bug, but I can't figure out what is happening or why for that matter. It's a fairly common occurrence when I build a table and chairs in the prison room it turns into a semi gathering spot for my colonists, even when there are no prisoners to convince.

You can see it here with Jimmy and Sheng in the upper left. There's actually a stack of people up there under Jimmy. Maybe there's some sort of table dancing going on that table, but I don't get it.

Here's the save: https://drive.google.com/file/d/0B-BdyVaGMRziekxkdE93RmV0RDg/edit?usp=sharing

[deadbeat88]

thats not a bug. lol.

idle colonists gather on the table when they have nothing to do... usually on a prison table.

if you dont want them to gather on the table of a prison area, select the table and press F.