With some luck between the confusion of everything that was happening and then the bludgeoning hopefully muddling things in her head even further she won't remember that part. Despite generally being a daring person who several times has sneaked into places she shouldn't be at -- with varying success -- Shelley's capacity to be subtle...needs improvement. At least she didn't let herself be seen, because that'd have made it likelier things could be traced back to her.

She hopes this gal didn't see her, at least. You can never be sure!

"Like her chair collapsed and she fell and hit her head? It's not impossible. Just unlikely."

Another option could be that something fell from a shelf and onto her head, if there's even any shelf out there, but that'd require making even more of a mess, so perhaps it won't be a good idea. A tile from the roof, though, that's a nice option!

Still, just in case, Shelley makes sure she picked up all the pieces of broken keyboard that may be around. Leave no traces! Well, more than she already did.