By Hillary Busis
Updated February 05, 2013 at 04:47 PM EST

The stars of the ’80s and ’90s are usually happy to play along when talk show hosts insist on referencing their beloved, long-dead projects. But sometimes, those stars just don’t feel like dwelling on the past.

Take, for example, Saved by the Bell star Tiffani Thiessen, who was unpleasantly surprised this morning when her Today show appearance was interrupted by a surprise guest: Dennis Haskins, a.k.a. goofy Mr. Belding. Please note Thiessen’s face, which looks just how you’d look if your high school principal showed up at your birthday party:

In the end, Thiessen’s a perfectly good sport about the whole thing — which is just what we’d expect from amiable Kelly Kapowski. The most popular girl in school knows a thing or two about saving face.

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