In no particular order, these are the things that cause Janie great concern:
Kites - the bigger, the scarier
Balloons - especially Mylar
Statues - mostly just if she hasn't already seen them several times before
Spray bottles - only when being sprayed near her
Any human under four-and-a-half feet tall
When someone has an apple, but doesn't share a few bites
When someone opens that cheese box (refrigerator), but doesn't give her a bite of cheese
When she sees her kitty-friend, Kenji, get lettuce, but Janie doesn't get any lettuce, even though Janie doesn't like lettuce
When the kitties fight with each other - Janie checks out the fuss, but doesn't get involved.
When a kitty wants to come inside, but no one opens the door - Janie will alert Chad or me and lead us to the door.
Sonic - Sonic is our fourteen pound male cat. He hides around corners, then jumps out at Janie when she tries to pass. He puffs up his fur and hisses. It's very scary. Janie flinches and backs away, but then she wags her tale for some reason and acts excited. Maybe it makes Janie feel included when Sonic ambushes her since he also accosts Marigold and Kenji (our other two cats).
Baths - duh. It should be noted that Janie behaves well during baths. She stands very still and gets a far away look in her eyes as if she is meditating on her happy thoughts until the bathing ceases.