Email quote:
(without Mrs Squirrel, alas, she had a
conference in Louisiana to attend)

Sounds like Mrs Squirrel had an iron clad alibi! Are you sure Mrs Squirrel isnt
trying to get rid of Mr. Squirrel?

All kidding aside,had same behaviour was the master cylinder. As many have
mentioned do a complete fluid flush at the same time. Would be a good time
to justify purchasing a motive powerbleeder. Just make sure it fits the vanagon.

Bill