This series is just a bit too grounded for comedic bits like Tomo randomly grabbing the house keys and throwing them.
She comes across as a massive try hard, or as someone who is desperate to be quirky and "unique".
She's usually fairly tolerable, and can be funny in the series up to this point, but this chapter is definitely her at her worst and most intolerable for a reader.
I doubt it's going to happen, but it'd be great if Yomi actually - for really reals- got upset at Tomo and made her reflect on how her actions effect others.