I'm pretty liberal. Too much. Yet, 18 yrs old, 1990. Hampshire
  College, amherst ma. Liberal as liberal gets. Here's what I said
  too frequently (or not enough) that was my "friend test":
  Someone would start ranting to me about intolerant people.
  Intolerant this, intolerant that. I was sympathetic: I could see
  where they were coming from and in GENERAL, I could agree
  mostly. But... here was my friend test: "Ok, but if you're so
  tolerant, doesn't that mean you need to tolerate the intolerant
  people too? Otherwise you're being intolerant. What if the
  people who you are calling intolerant are actually tolerating
  YOU, making THEM the tolerant ones, and you the intolerant that
  you so despise?" I remember it well because I said it a lot, and
  I have NO IDEA where it came from. Anyway, it was a good friend
  sorter. Many got offended. Some wouldn't talk to me again. But a
  few "got" what I was saying, and get a knowing look like, "k,
  you got me, you got me on that". Those ppl? I'm on and off life
  long friends with. The ones that left in a huff that prior
  thought I was better than Jesus? Hardly said "boo" to me after
  that. I guess I was a little 18 yr old smartass. I thought I was
  clever.