[woofie11]

I've certainly used comic sans intentionally when presenting data. Much of this depends on audience too. A corporate board meeting is quite different from an activity with a group of rowdy 8-year-olds from a presentation in a university class from a tight-nit group of friends launching a startup.

Some comes down to power hierarchy too. Presenting up, I'm much more likely to try to appear professional. Presenting down, I go for approachable.