Mosquitoes in an area where malaria isn't prevalent.
That one fly that won’t go away and is very loud for a fly
That rat that was attacking people on the escalator. Reminded me of every "Go clean the rats from the cellar" first mission in RPG's.
At the playground near my house there's one of those riding animal toys that's mounted on a big spring.
That is my 1.5 year old daughter's mortal enemy.
Not only is she slightly scared of it, last week she built up the courage to go "pet" it...she slipped and fell and when she stood up she bonked her head on it and got a huge bruise / welt right in the middle of her forehead.
...you win this round, Springy Horsey.
A 6 year old who's trying to punch you for no reason.
The shift manager at your first part-time job.
You have to keep in mind too that level one enemies are a real danger for level one players. Cats are level one enemies for any baby. At higher levels they can join your party.
Any bug really. Even the nastiest of wasps or bees can be gotten rid off with a badminton racket. Also, they can't really kill you unless you are a psychic, grass or dark type. And allergies.
Arsehole neighbour's child.
Arsehole neighbour is Level 2
A 5 year old with a nerf bat.