He told you that there was a brake problem; nobody knows when a "problem" will become a failure. If you knew it was the master cylinder, why not get it towed to a shop, or say "I'll buy it once the brakes are fixed"?

Like you said, as-is is sold as-is. Sucks to be you when the brakes fail, but I've been there before; brakes broke and then there you are doing your damnedest to stop that thing. For me, it was an '88 olds; believe me it's much easier to stop a teg than an Olds.

k..don't delete your post.
but as much of an 'idiot' he is for selling you something in subpar condition...you're just as much of one by posting an online threat - "watch out"

if anyone can learn something from this...it just goes to show you to that spending the $80-120 for a full car inspection before buying a used car is worth the money. don't cheap out.