It's rude to interrupt someone while they're packing.
Penelope is good friends with her coworker Jessie who is packing up her office because she is changing jobs.
Penelope wants to hang out with Jessie one more time before she leaves.
Penelope sends Jessie a text message asking her to hang out once she's done packing.
Penelope comes into Jessie's office while she is packing and invites her out to lunch.
Jessie finishes packing on time and comes to find Penelope to hang out together.
Jessie spends too much time out with Penelope and ends up having to stay late to finish packing.