A reliable way to find the lowest quality products is to look for those that describe themselves as "premium" or "quality" or "real."
I took a bunch of teenagers shooting last month, and most of them had never picked up a gun before. There were three boys that outshone the others as being much better shots straight away. And funny enough, they were not the boys I would have predicted. So, yes, people can have a knack for it.
That being said, better than average depends on what population of people you're talking about. If you're including all non-experienced shooters, then absolutely, with a little careful practice, most people can become decent shots in a pretty short amount of time.
As someone with Crohn's disease, this is a normal day. Honestly, I'd be feeling off until I shit my pants.
How many private keys do you happen to have in .ssh? MaxAuthTries defaults to 6, and keys are always tried before you are prompted for a password. Unless you set PubkeyAuthentication=no, or specify a single key, the ssh client will happily grind through each key until the server cuts you off.