Pre-ruffle, mid-ruffle, and post-ruffle Tenth Doctor Hair
David Tennant from the podcast commentary for Tooth and Claw (from the hair-messing-up scene above):
“I love the way Euros [Lyn, director] uses all these shots here to show the ideas all colliding at once
…and I love messing with my hair in moments like this, because it gives Steve, who does my make-up, a nightmare in continuity terms.
I like to keep him on his toes.”
David Tennant Appreciation Week 2016 (theme: smile - because it makes me)