Charlene can be a bit of a pest. She gets that way when she's bored. Just ask her big sister, Drewey.
She likes to position herself so it's impossible for Drewey to walk past her without coming within her paw's reach. She'll trap her under tables, on the stairs, or in a doorway.
One of her favorite spots to trap her sister is in the bathroom. Drewey likes to drink from the tap, and Charlene will lurk beneath the sink or in the doorway and wait for her sister to jump down.
Drewey is annoyed by this behavior, but she's the most patient cat in the world and will sit it out until Charlene grows bored and moves on.
I'm in no hurry. Whatever. Sit there as long as you like. I'm perfectly happy up here on the sink.
Coast is clear, I'm out of here.
What....? I was just thirsty.