Freaking the Mundanes

The term, “Freaking the Mundanes” was something used by the participants of a medieval history group with which I’d had an association in days of yore, used to describe the reaction of the townies when these costumed campers, in full “Viking” garb or Renaissance regalia, would make a trip into town for provisions at the grocery store,
or to the bank or wherever on their way to a weekend event. Most folks would just stare with a silly grin, but some might ask, “Uhh…are you in a play or something…?”, which might give the young devotees a thrill because of the attention garnished. Their enthusiasm would swell, as they would tell the curious allll about their anachronistically historical adventures. (There’s even a filk song or two circulating about it.)

I heard a story in an interview once about how Lyle Lovett and his college roommate at Texas A & M University would sleep in on Sunday mornings, then traipse out in their skivvies, guitars in hand, on to the front porch of their old rented house, to sing songs at the top of their lungs with not so much of a Sunday morning theme, if you catch my drift.
This might not be such an odd or unusual thing for young musicians, except for where and when they’d begin their mid day crooning…oh, about noon-ish, just in time for Sunday services to let out at the local Baptist Church in full view and directly across the street!

I hesitate to ask, but I simply must as my curiosity is peaked about some of you:
What mischievous tales of impish delight might the Folk Alley crowd relate regarding your past musical shenanigans?
How had you “freaked the mundanes” in your most inventive and oh, so creative ways!?