1 General: Hey, you two!
2 Young Jamie: Uh oh. The base commander. We'll be nabbed for trespassing on military property.
3 General: I thought you two professors would still be looking at the crash wreckage.
4 Young Jamie: He thinks we're our own grandfathers!
4 Young Adam: Military intelligence at its finest.

Now this one I actually did go back and redo part of a previous episode to fix a potential problem in this strip. The general is the same character of course, so needs the same coloured speech balloons. But when I originally made #2457, I gave him blue balloons. Only when I came to make this strip did I realise that they were indistinguishable from Jamie's balloons, so I went back and remade #2457 to give the general green ones instead.

This isn't nearly as interesting as a DVD commentary, I know.