They got Karen from the same episode too… I don’t like that ten has already interacted with him UNLESS they plan to use this.
headcanon that 12 was just messing with 10 and Donna because he knew exactly who they were
I mean he stole the TARDIS
must have been walking down the street and like, oh that’s where I parked you
Then 10 shows up and he realised went ‘Oh’