Okay this never happened before so I don't know if its a coincidence or not. Have just installed DragonBorn and decided to take a break from my Solstheim quests and visit the family at Falkreath.

After a night's rest in Lakeview Manor, I was heading to the front door and got a shock 'cos my House Carls from Heljarchen Hall and Windstand Manor were about to leave Lakeview Manor. When I got out of the front door, they were there too and were seen walking off to goodness knows where (presumably their respective houses).

Which is odd because neither of them were active followers so how the heck did they both end up in my house? Anyone else experienced this?