The only friend's 1st assignment

[Dragon's muse]

Craft a scene/chapter/story with the following opening line.

Marla swore under her breath when her fingernail punctured her stocking.

[The only friend]

Hello,
due to a lot of schoolwork,
I wasnt around for a few days (feeling stupid right now...)
This weekend will also be very full, but after that, I'll get to it!

Thanks for the assignment (I think it is a very fun one...)