Many times, taking 'in drag' to refer to being simply cross-dressed. The second most memorable resulted in me waking a roommate (my colleague) with sleep talking, an attractive GG dressing me in a maid outfit for no apparent reason, singing karaoke while dressed (Eagles no less).

Apparently at my workplace now, the phrase "If you think so, I don't" (spoken out loud in response to said GG squealing over how cute she thought I looked) has taken on a life of its own.

As for the conventional sense of drag, not yet.