Leonard: The interface is pretty simple. You put your horizontal X coordinate here, vertical Y coordinate here. When you're happy with those, you press this button.
Penny: Got it.
Sheldon: Leonard, you'll never guess who I just found online. (A foam missile fires at Sheldon) Hey!
Leonard: Nice shot.
Penny: Eh, his giant head did most of the work.
Sheldon: Very mature. You're lucky I'm out of silly string.