Golf balls.
The Doctor: Brian Pond, you're delicious.
Brian: I'm not a Pond!
The Doctor: Of course you are.
*Brian and Rory sit down in the spaceship control chairs*
Doctor: The ship does all the engineering The controls are straight forward even a monkey can use them, oh look they're going to.
*Unamused*
Doctor: Guy, come on, comedy gold. Where's a Silurian audience when you need one?