In the shots preceding Mickey's line about metal pins in his thumbs, you can see that his thumbs are perfectly fine.
Older Ted: Kids October of 2012 kicked off the Autumn of Breakups. And Barney having broken his engagement with Quinn was slowly trying to pick himself back up.
Barney: Welcome to Bangtoberfest! Have a Bangtoberfest T-shirt I'm back! Have a Bangtoberfest T-shirt I'm single again! Sorry about your eye I'm available!
Original International Air Dates:
Canada: October 8, 2012 on Citytv